Skill updates

IXL is continually adding new skills and improving existing ones to offer fresh and exciting ways to learn. To accurately reflect the curriculum improvements, skill names and skill listings may be adjusted, but the permanent skill ID always stays the same. Use this page to discover new skills and find old favorites!

Math
Language arts
Science
Social studies
Spanish
Spanish language arts
Pre-K
Kindergarten
First
Second
Third
Fourth
Fifth
Sixth
Seventh
Eighth
Algebra 1
Geometry
Algebra 2
Precalculus
Calculus
Listing
Skill name and permanent skill ID
A.6
Regroup thousands, hundreds, tens, and ones - ways to make a number 8VN
A.6
→
A.7
Place value word problems 5TF
A.7
→
A.8
Guess the number KEJ
G.
→
G.1
Use number lines to add three-digit numbers 8XG
G.1
→
G.2
Use compensation to add: up to three digits H7K
G.
→
G.3
Use expanded form to add three-digit numbers RPC
G.2
→
G.4
Add two numbers up to three digits: without regrouping 96M
G.3
→
G.5
Add two numbers up to three digits: with regrouping 9NH
G.4
→
G.6
Add two numbers up to three digits E83
G.5
→
G.7
Add two numbers up to three digits: word problems QU2
G.6
→
G.8
Complete the addition sentence: up to three digits D69
G.7
→
G.9
Balance addition equations: up to three digits 7PE
G.8
→
G.10
Addition up to three digits: fill in the missing digits LYB
G.9
→
G.11
Add three numbers up to three digits each GSY
G.10
→
G.12
Add three numbers up to three digits each: word problems NPU
H.1
Use number lines to subtract three-digit numbers QRQ
H.1
→
H.2
Use compensation to subtract: up to three digits WPW
H.3
Use expanded form to subtract three-digit numbers YM7
H.2
→
H.4
Subtract numbers up to three digits: without regrouping QFE
H.3
→
H.5
Subtract three-digit numbers: with regrouping H7D
H.4
→
H.6
Subtract numbers up to three digits EHT
H.5
→
H.7
Subtract across zeros 93U
H.6
→
H.8
Subtract numbers up to three digits: word problems K88
H.7
→
H.9
Complete the subtraction sentence: up to three digits MD8
H.8
→
H.10
Balance subtraction equations: up to three digits 8VK
H.9
→
H.11
Subtraction up to three digits: fill in the missing digits 67M
K.2
Use number lines to add and subtract three-digit numbers HGG
K.2
→
K.3
Use compensation to add or subtract: up to three digits HFG
K.3
→
K.4
Add and subtract three-digit numbers 2TD
K.5
Complete the addition or subtraction sentence: up to three digits QSS
K.4
→
K.6
Add and subtract data from tables HX2
K.5
→
K.7
Addition and subtraction word problems
→
Addition and subtraction word problems: up to three digits XSH
K.6
→
K.8
Age puzzles YWU
K.7
→
K.9
Find two numbers based on sum and difference 9Z7
M.1
Skip-counting
→
Skip-count LQM
N.
→
N.7
Multiply by 0 or 1 with equal groups MZE
N.7
→
N.8
Identify multiplication expressions for arrays HZL
N.8
→
N.9
Write multiplication sentences for arrays 5FZ
N.9
→
N.10
Make arrays to model multiplication PPR
N.10
→
N.11
Multiply using number lines XHY
N.11
→
N.12
Write multiplication sentences for number lines NTV
N.12
→
N.13
Relate addition and multiplication P74
N.13
→
N.14
Compare numbers using multiplication 5JE
O.1
Multiply by 0
→
Multiply 0 by numbers up to 10 BGK
O.2
Multiply by 1
→
Multiply 1 by numbers up to 10 CRE
O.3
Multiply by 2
→
Multiply 2 by numbers up to 10 94M
O.4
Multiply by 3
→
Multiply 3 by numbers up to 10 38K
O.5
Multiply by 4
→
Multiply 4 by numbers up to 10 5U6
O.6
Multiply by 5
→
Multiply 5 by numbers up to 10 Y9E
O.7
Multiply by 6
→
Multiply 6 by numbers up to 10 SX6
O.8
Multiply by 7
→
Multiply 7 by numbers up to 10 9PT
O.9
Multiply by 8
→
Multiply 8 by numbers up to 10 SMR
O.10
Multiply by 9
→
Multiply 9 by numbers up to 10 SUH
O.11
Multiply by 10
→
Multiply 10 by numbers up to 10 6YD
Q.1
Multiply 1 by numbers up to 12 Q6U
Q.2
Multiply 2 by numbers up to 12 GXU
Q.3
Multiply 3 by numbers up to 12 38H
Q.4
Multiply 4 by numbers up to 12 N7X
Q.5
Multiply 5 by numbers up to 12 8AN
Q.6
Multiply 6 by numbers up to 12 29S
Q.7
Multiply 7 by numbers up to 12 LCQ
Q.8
Multiply 8 by numbers up to 12 8F8
Q.9
Multiply 9 by numbers up to 12 NJS
Q.10
Multiply 10 by numbers up to 12 UDV
O.12
→
Q.11
Multiply by 11
→
Multiply 11 by numbers up to 12 AZJ
O.13
→
Q.12
Multiply by 12
→
Multiply 12 by numbers up to 12 8NV
Q.1
→
R.1
Multiplication facts to 12 TK7
Q.2
→
R.2
Multiplication facts up to 12: true or false? YSY
Q.3
→
R.3
Multiplication facts up to 12: find the missing factor WB8
Q.4
→
R.4
Multiplication facts up to 12: select the missing factors VTZ
Q.5
→
R.5
Multiplication sentences up to 12: true or false? LMD
R.1
→
S.1
Properties of multiplication MPE
R.2
→
S.2
Solve using properties of multiplication YPF
S.3
Multiply three numbers using properties YDP
R.3
→
S.4
Multiply by 0 or 1: complete the sentence RBK
R.4
→
S.5
Write two multiplication sentences for an array QLK
R.5
→
S.6
Distributive property: find the missing factor 7VP
R.6
→
S.7
Multiply one-digit numbers using grids HXY
R.7
→
S.8
Multiply using the distributive property 6W7
R.8
→
S.9
Even or odd: multiplication patterns WS2
S.10
Identify multiplication patterns in tables CK9
S.
→
T.1
Use equal groups and arrays to solve multiplication word problems EBV
S.
→
T.2
Multiplication word problems with factors up to 5 HDU
S.
→
T.3
Use strip models to solve multiplication word problems EYU
S.1
→
T.4
Multiplication word problems with factors up to 10 9TA
S.
→
T.5
Multiplication word problems with factors up to 5: find the missing number UAD
S.2
→
T.6
Multiplication word problems with factors up to 10: find the missing number F6C
S.3
→
T.7
Compare numbers using multiplication: word problems Z46
T.1
→
U.1
Multiply by a multiple of ten using place value GPN
T.2
→
U.2
Multiply by a multiple of ten MS6
T.3
→
U.3
Multiply one-digit numbers by teen numbers using grids 8XQ
T.4
→
U.4
Multiply one-digit numbers by two-digit numbers using area models I V9Q
T.5
→
U.5
Multiply one-digit numbers by two-digit numbers using area models II QXM
T.6
→
U.6
Multiply one-digit numbers by two-digit numbers 9PM
T.7
→
U.7
Multiply one-digit numbers by two-digit numbers: word problems X5D
T.8
→
U.8
Multiply three numbers 5EC
T.9
→
U.9
Multiply three numbers: word problems X9H
U.1
→
V.1
Divide by counting equal groups UYK
U.2
→
V.2
Write division sentences for groups FSX
U.3
→
V.3
Division sentences with 1 and 0 FYZ
U.4
→
V.4
Relate multiplication and division for groups FTU
U.5
→
V.5
Write division sentences for arrays 8RW
V.6
Make arrays to model division R8J
U.6
→
V.7
Relate multiplication and division for arrays XSK
U.7
→
V.8
Relate multiplication and division 67L
V.9
Divide using number lines GB2
V.1
→
W.1
Divide by 1
→
Divide by 1: quotients up to 10 VTL
V.2
→
W.2
Divide by 2
→
Divide by 2: quotients up to 10 ANU
V.3
→
W.3
Divide by 3
→
Divide by 3: quotients up to 10 PCL
V.4
→
W.4
Divide by 4
→
Divide by 4: quotients up to 10 QGT
V.5
→
W.5
Divide by 5
→
Divide by 5: quotients up to 10 C9M
V.6
→
W.6
Divide by 6
→
Divide by 6: quotients up to 10 97S
V.7
→
W.7
Divide by 7
→
Divide by 7: quotients up to 10 D2F
V.8
→
W.8
Divide by 8
→
Divide by 8: quotients up to 10 CVD
V.9
→
W.9
Divide by 9
→
Divide by 9: quotients up to 10 RTB
V.10
→
W.10
Divide by 10
→
Divide by 10: quotients up to 10 YRG
W.1
→
X.1
Division facts for 2, 3, 4, 5, and 10 2JB
W.2
→
X.2
Division facts for 2, 3, 4, 5, and 10: true or false? YSD
W.3
→
X.3
Division facts for 2, 3, 4, 5, and 10: sorting XDN
W.4
→
X.4
Division facts for 6, 7, 8, and 9 U2C
W.5
→
X.5
Division facts for 6, 7, 8, and 9: true or false? DBB
W.6
→
X.6
Division facts for 6, 7, 8, and 9: sorting KQR
W.7
→
X.7
Division facts up to 10 M8T
W.8
→
X.8
Division facts up to 10: true or false? MPV
W.9
→
X.9
Division facts up to 10: sorting CYJ
W.10
→
X.10
Division facts up to 10: find the missing number HE7
W.11
→
X.11
Division facts up to 10: select the missing numbers FPA
W.12
→
X.12
Division sentences up to 10: true or false? GMU
Y.1
Divide by 1: quotients up to 12 8MT
Y.2
Divide by 2: quotients up to 12 X7Y
Y.3
Divide by 3: quotients up to 12 CNH
Y.4
Divide by 4: quotients up to 12 7HV
Y.5
Divide by 5: quotients up to 12 PZV
Y.6
Divide by 6: quotients up to 12 CGU
Y.7
Divide by 7: quotients up to 12 H2E
Y.8
Divide by 8: quotients up to 12 99B
Y.9
Divide by 9: quotients up to 12 73P
Y.10
Divide by 10: quotients up to 12 YUD
V.11
→
Y.11
Divide by 11
→
Divide by 11: quotients up to 12 WU9
V.12
→
Y.12
Divide by 12
→
Divide by 12: quotients up to 12 QSY
X.1
→
Z.1
Division facts up to 12 TA7
X.2
→
Z.2
Division facts up to 12: true or false? ZBR
X.3
→
Z.3
Division facts up to 12: find the missing number MFD
X.4
→
Z.4
Division facts up to 12: select the missing numbers SP9
X.5
→
Z.5
Division sentences up to 12: true or false? YCQ
Y.
→
AA.1
Use equal groups to solve division word problems NEC
Y.
→
AA.2
Use arrays to solve division word problems W6C
Y.
→
AA.3
Use equal groups and arrays to solve division word problems LZT
AA.4
Use strip models to solve division word problems 2YL
Y.1
→
AA.5
Division word problems ECS
Z.1
→
BB.1
Multiplication and division facts up to 5: true or false? 6HS
Z.2
→
BB.2
Multiplication and division facts up to 10 VXX
Z.3
→
BB.3
Multiplication and division facts up to 10: true or false? WQT
BB.4
Multiplication and division facts up to 10: find the missing number 88D
BB.5
Multiplication and division facts up to 10: select the missing numbers NJR
Z.4
→
BB.6
Multiplication and division facts up to 12: true or false? UAG
Z.5
→
BB.7
Multiplication and division sentences up to 12: true or false? A8Q
Z.6
→
BB.8
Multiplication and division word problems 85K
BB.9
Multiplication and division: real-world patterns QQN
AA.1
→
CC.1
Addition, subtraction, multiplication, and division facts 7RF
AA.2
→
CC.2
Complete the addition, subtraction, multiplication, or division sentence N5U
AA.3
→
CC.3
Add, subtract, multiply, and divide AZH
AA.4
→
CC.4
Addition, subtraction, multiplication, and division word problems X8W
AA.5
→
CC.5
Find two numbers based on sum, difference, product, and quotient DAV
BB.1
→
DD.1
Two-step addition and subtraction word problems CBA
BB.2
→
DD.2
Two-step multiplication and division word problems 8FP
BB.3
→
DD.3
Two-step mixed operation word problems SRL
BB.4
→
DD.4
Two-step word problems: identify reasonable answers V5A
CC.1
→
EE.1
Identify equations DW9
CC.2
→
EE.2
Solve for the unknown number: addition and subtraction only BQT
CC.3
→
EE.3
Solve for the unknown number: multiplication and division only AL9
CC.4
→
EE.4
Solve for the unknown number D65
CC.5
→
EE.5
Write equations with unknown numbers to represent word problems: multiplication and division only ZNN
CC.6
→
EE.6
Write equations with unknown numbers to represent word problems U6P
DD.1
→
FF.1
Identify equal parts FHY
DD.2
→
FF.2
Make halves, thirds, and fourths HGP
DD.3
→
FF.3
Make sixths and eighths KTM
DD.4
→
FF.4
Make halves, thirds, fourths, sixths, and eighths JHE
DD.5
→
FF.5
Understand fractions: fraction bars 6JL
DD.6
→
FF.6
Understand fractions: area models RTW
DD.7
→
FF.7
Show fractions: fraction bars ZPW
DD.8
→
FF.8
Show fractions: area models NLE
DD.9
→
FF.9
Match fractions to models: halves, thirds, and fourths Y55
DD.10
→
FF.10
Match unit fractions to models CPK
DD.11
→
FF.11
Match fractions to models YHL
FF.12
Match mixed numbers to models UWH
DD.12
→
FF.13
Fractions of a group: unit fractions SSY
DD.13
→
FF.14
Fractions of a group 5Z6
DD.14
→
FF.15
Write fractions using numbers and words 7FX
DD.15
→
FF.16
Decompose fractions into unit fractions 99A
EE.1
→
GG.1
Fractions of number lines: unit fractions TBX
EE.2
→
GG.2
Fractions of number lines: halves, fourths, and eighths LUA
EE.3
→
GG.3
Fractions of number lines J8M
EE.4
→
GG.4
Identify unit fractions on number lines JVC
EE.5
→
GG.5
Identify fractions on number lines AWH
EE.6
→
GG.6
Graph unit fractions on number lines CBW
EE.7
→
GG.7
Graph fractions less than 1 on number lines HWJ
EE.8
→
GG.8
Graph fractions on number lines 7QM
EE.9
→
GG.9
Graph smaller or larger fractions on a number line 2PH
FF.1
→
HH.1
Unit fractions: modeling word problems UV8
FF.2
→
HH.2
Unit fractions: word problems HM7
FF.3
→
HH.3
Fractions of a whole: modeling word problems 9PU
FF.4
→
HH.4
Fractions of a whole: word problems BV7
FF.5
→
HH.5
Fractions of a group: word problems Z65
GG.1
→
II.1
Find equivalent fractions using fraction strips LXP
GG.2
→
II.2
Find equivalent fractions using area models: two models ZJ2
GG.3
→
II.3
Find equivalent fractions using area models: one model 6DY
GG.4
→
II.4
Identify equivalent fractions on number lines HYM
GG.5
→
II.5
Find equivalent fractions using number lines JL8
GG.6
→
II.6
Graph equivalent fractions on number lines WPQ
GG.7
→
II.7
Identify equivalent fractions 7DA
GG.8
→
II.8
Find equivalent fractions WMX
GG.9
→
II.9
Write fractions in lowest terms YM2
HH.1
→
JJ.1
Graph fractions equivalent to 1 on number lines 7BL
HH.2
→
JJ.2
Select fractions equivalent to whole numbers using models GKZ
HH.3
→
JJ.3
Select fractions equivalent to whole numbers 42U
HH.4
→
JJ.4
Find fractions equivalent to whole numbers KCE
II.1
→
KK.1
Compare fractions with like denominators using models TDE
II.2
→
KK.2
Graph and compare fractions with like denominators on number lines 63U
II.3
→
KK.3
Compare fractions with like denominators 8SU
JJ.1
→
LL.1
Compare fractions with like numerators using models RGM
JJ.2
→
LL.2
Graph and compare fractions with like numerators on number lines ZPD
JJ.3
→
LL.3
Compare fractions with like numerators 7LX
KK.1
→
MM.1
Compare fractions using models MJ2
KK.2
→
MM.2
Compare fractions using number lines 38T
KK.3
→
MM.3
Graph and compare fractions on number lines 6H5
KK.4
→
MM.4
Compare fractions 78D
MM.5
Compare fractions and justify your answer QB7
KK.5
→
MM.6
Compare fractions in recipes 9BK
LL.1
→
NN.1
Graph and order fractions on number lines T7E
LL.2
→
NN.2
Order fractions with like denominators HYZ
LL.3
→
NN.3
Order fractions with like numerators PCW
LL.4
→
NN.4
Order fractions GBA
MM.1
→
OO.1
Find the area of figures made of unit squares FLQ
OO.2
Find the area of figures made of unit squares: customary and metric units X53
MM.2
→
OO.3
Select figures with a given area XR6
MM.3
→
OO.4
Select two figures with the same area 7GW
MM.4
→
OO.5
Tile a rectangle and find the area EKK
MM.5
→
OO.6
Multiply to find the area of a rectangle made of unit squares S7G
MM.6
→
OO.7
Create figures with a given area Z2H
MM.7
→
OO.8
Create rectangles with a given area V73
MM.
→
OO.9
Find the area of a tiled rectangle using the distributive property EFG
MM.8
→
OO.10
Find the area of rectangles and squares 8KJ
MM.9
→
OO.11
Find the missing side length of a rectangle X66
MM.10
→
OO.12
Find the area of rectangles with missing unit squares KTN
MM.11
→
OO.13
Find the area of rectangles: word problems 5HA
MM.
→
OO.14
Find the missing side length of a rectangle: word problems DGM
MM.12
→
OO.15
Find the area of complex figures by dividing them into rectangles DVB
MM.13
→
OO.16
Find the area of complex figures SGP
MM.14
→
OO.17
Find the area between two rectangles KH6
OO.18
Find the area of complex figures: word problems D9G
PP.1
Perimeter of figures on grids VLG
NN.1
→
PP.2
Perimeter of rectangles ZJT
NN.2
→
PP.3
Perimeter of quadrilaterals 77Y
NN.3
→
PP.4
Perimeter of rectilinear shapes 65Z
NN.4
→
PP.5
Perimeter of polygons LLY
NN.5
→
PP.6
Perimeter: find the missing side length T2V
NN.6
→
PP.7
Perimeter: word problems CLD
NN.
→
QQ.1
Find the area, perimeter, or side length: word problems KD8
QQ.2
Choose between area and perimeter: word problems LN2
QQ.3
Rectangles with the same perimeter or area RYC
NN.7
→
QQ.4
Relationship between area and perimeter: find the perimeter ZWF
NN.8
→
QQ.5
Relationship between area and perimeter: find the area KNR
OO.1
→
RR.1
Lines, line segments, and rays 24L
OO.2
→
RR.2
Angles greater than, less than, or equal to a right angle 2YR
OO.3
→
RR.3
Parallel, perpendicular, and intersecting lines 9SX
SS.1
Is it a polygon? C2P
SS.2
Count and compare sides and vertices GWA
SS.3
Attributes of polygons HJF
SS.4
Identify polygons: up to 12 sides MT5
SS.5
Sort two-dimensional shapes using sides and angles J5R
PP.1
→
TT.1
Parallel sides in quadrilaterals 6E9
TT.2
Attributes of quadrilaterals HXD
PP.2
→
TT.3
Identify rectangles 47T
PP.3
→
TT.4
Identify parallelograms V6L
PP.4
→
TT.5
Identify rhombuses ZSD
PP.5
→
TT.6
Identify trapezoids 67A
TT.7
Classify squares, rectangles, rhombuses, and parallelograms P87
PP.6
→
TT.8
Classify quadrilaterals
→
Classify squares, rectangles, rhombuses, parallelograms, and trapezoids CNJ
TT.9
Name quadrilaterals more than one way 45V
TT.10
Draw squares, rectangles, rhombuses, and parallelograms ACQ
PP.7
→
TT.11
Draw quadrilaterals
→
Draw squares, rectangles, rhombuses, parallelograms, and trapezoids 5KS
QQ.1
→
UU.1
Match clocks and times LPT
QQ.2
→
UU.2
Match analog and digital clocks L5U
QQ.3
→
UU.3
Read clocks and write times 5ZQ
QQ.4
→
UU.4
A.M. or P.M. MUC
QQ.5
→
UU.5
Identify times written in words EQS
RR.1
→
VV.1
Find the end time U7B
RR.2
→
VV.2
Find the elapsed time SCQ
RR.3
→
VV.3
Find the end time: word problems 5VC
VV.4
Find the start time: word problems X63
RR.4
→
VV.5
Find the elapsed time: word problems V9D
VV.6
Find the start time, the end time, or the elapsed time: word problems 9JB
RR.
→
VV.7
Find start and end times: two-step word problems C95
SS.1
→
WW.1
Read a Fahrenheit thermometer KL9
SS.2
→
WW.2
Measure using an inch ruler
→
Measure using an inch ruler: nearest ¼ inch LC2
WW.3
Estimate lengths with inches, feet, and yards RQC
WW.4
Read a scale - customary units MCN
WW.5
Measure liquid volumes using half and quarter cups ZYA
SS.3
→
WW.6
Which customary unit of length is appropriate? WRB
SS.4
→
WW.7
Which customary unit of weight is appropriate? GK8
SS.5
→
WW.8
Which customary unit of volume is appropriate? J9R
SS.6
→
WW.9
Which customary unit is appropriate? 54W
TT.1
→
XX.1
Read a Celsius thermometer UWD
XX.2
Read a scale - metric units 66D
XX.3
Measure liquid volumes - metric units 7FE
XX.4
Estimate lengths with centimeters and meters BCF
TT.2
→
XX.5
Which metric unit of length is appropriate? YWR
TT.3
→
XX.6
Which metric unit of weight is appropriate?
→
Which metric unit of mass is appropriate? PTF
TT.4
→
XX.7
Which metric unit of volume is appropriate? LYS
TT.5
→
XX.8
Which metric unit is appropriate? FQ8
TT.6
→
XX.9
Measurement word problems VPW
YY.1
Interpret data in tables DE2
UU.3
→
YY.2
Create bar graphs
→
Create scaled bar graphs RPF
UU.1
→
YY.3
Interpret bar graphs
→
Interpret scaled bar graphs V54
UU.2
→
YY.4
Use bar graphs to solve problems BCJ
YY.5
Interpret bar graphs: multi-digit numbers UP6
UU.5
→
YY.6
Create picture graphs
→
Create scaled picture graphs AVG
UU.4
→
YY.7
Interpret picture graphs
→
Interpret scaled picture graphs Y5D
UU.7
→
YY.8
Create line plots H5J
UU.6
→
YY.9
Interpret line plots YXD
UU.8
→
YY.10
Create line plots with fractions YUR
YY.11
Create and interpret line plots with fractions B8Q
VV.1
→
ZZ.1
Count coins and bills - up to $5 bill 9RP
VV.2
→
ZZ.2
Count coins and bills word problems - up to $5 bill R6G
VV.3
→
ZZ.3
Purchases - do you have enough money - up to $10 T7L
VV.4
→
ZZ.4
Which picture shows more? JUW
VV.5
→
ZZ.5
Correct amount of change 8KD
VV.6
→
ZZ.6
Making change TF7
VV.7
→
ZZ.7
Inequalities with money QKG
VV.8
→
ZZ.8
Put money amounts in order TB9
VV.9
→
ZZ.9
Add and subtract money amounts AKZ
VV.10
→
ZZ.10
Add money amounts - word problems BK6
VV.11
→
ZZ.11
Price lists 3Z6