Level D math skills

340 skills 318 videos 85 games

IXL has hundreds of Level D math skills to learn and review! As you work through a skill, questions will adapt to match your level. Keep answering questions to reach mastery!

A. Counting

1
Hundred chart

2
Number lines - up to 100

3
Number lines - up to 1,000

4
Count forward - up to 1,000

B. Comparing and ordering

1
Comparing numbers up to 100

2
Put numbers up to 100 in order

•
New! Compare numbers up to 1,000 using number lines

3
Comparing numbers up to 1,000

•
New! Compare and order numbers up to 1,000 using number lines

4
Put numbers up to 1,000 in order

5
Greatest and least - word problems - up to 100

6
Greatest and least - word problems - up to 1,000

C. Skip-counting and number patterns

1
Skip-count by twos

2
Skip-count by fives

3
Skip-count by tens

4
Skip-count by fives and tens

5
Skip-count by twos, fives, and tens

6
Skip-counting stories

7
Skip-counting sequences

8
Count forward and backward by fives and tens

9
Count forward and backward by twos, fives, and tens

10
Skip-counting puzzles

11
Count forward by tens - up to 1,000

12
Count forward by fives, tens, and hundreds

13
Count forward and backward by fives, tens, and hundreds

14
Count forward and backward by twos, fives, tens, and hundreds

D. Names of numbers

1
Spell word names for numbers up to 20

2
Writing numbers up to 100 in words - convert words to digits

3
Writing numbers up to 100 in words - convert digits to words

4
Writing numbers up to 1,000 in words - convert words to digits

5
Writing numbers up to 1,000 in words - convert digits to words

6
Writing numbers up to 1,000 in words

7
Roman numerals I, V, X

E. Even and odd

1
Even or odd number of shapes - up to 20

2
Identify even and odd numbers - up to 20

3
Addition sentences for even and odd numbers

4
Even or odd numbers on number lines

5
Identify even and odd numbers - up to 100

6
Select even and odd numbers - up to 100

7
Which even or odd number comes before or after?

F. Addition strategies: one digit

1
Add doubles using models

2
Add doubles

3
Add doubles - complete the sentence

4
Add near doubles

5
Addition sentences using number lines - sums to 20

6
Add by counting on - sums to 20

7
Make ten to add

8
Add zero

G. Addition: one digit

1
Add one-digit numbers - sums to 10

2
Add one-digit numbers - sums to 20

3
Sort addition facts - sums to 20

4
Addition word problems - sums to 20

5
Addition sentences for word problems - sums to 20

6
Complete the addition sentence - sums to 20

7
Balance addition equations - sums to 20

8
Which addition sentence is true? - sums to 20

9
Add three one-digit numbers

10
Addition word problems - three one-digit numbers

11
Add four or more one-digit numbers

12
Addition word problems - four or more one-digit numbers

H. Subtraction strategies: one digit

1
Subtract doubles

2
Subtraction sentences using number lines - up to 20

3
Subtract by counting back - up to 20

4
Use ten to subtract

5
Subtract by counting on - up to 20

6
Count on and use ten to subtract - up to 20

7
Subtract zero or all

I. Subtraction: one digit

1
Subtract one-digit numbers - up to 10

2
Subtract a one-digit number from a two-digit number up to 20

3
Subtraction word problems - up to 20

4
Subtraction sentences for word problems - up to 20

5
Complete the subtraction sentence - up to 20

6
Balance subtraction equations - up to 20

7
Which subtraction sentence is true? - up to 20

J. Mixed operations: one digit

1
Addition and subtraction sentences using number lines - up to 20

2
Addition and subtraction - up to 20

3
Ways to make a number using addition and subtraction - up to 20

4
Balance addition and subtraction equations - up to 20

5
Which addition or subtraction sentence is true? - up to 20

6
Write the addition or subtraction rule for an input/output table - up to 20

K. Mixed operations word problems: one digit

1
Comparison word problems - up to 20

2
Use models to solve addition and subtraction word problems - up to 20

3
Addition and subtraction word problems - up to 20

4
Write number sentences for word problems - up to 20

5
Match word problems to addition and subtraction sentences - up to 20

6
Two-step addition and subtraction word problems - up to 20

7
Solve word problems using guess-and-check - up to 20

L. Place value

1
Place value models - tens and ones

2
Place value models - up to hundreds

3
Place value models - up to thousands

4
Identify a digit up to the hundreds place

5
Value of a digit - tens and ones

6
Value of a digit - up to hundreds

7
Value of a digit - up to thousands

8
Convert to/from a number - tens and ones

9
Regroup tens and ones - ways to make a number

10
Regroup tens and ones

11
Convert to/from a number - up to hundreds

12
Convert between place values - ones and hundreds

13
Convert between place values - ones, tens, and hundreds

14
Convert from expanded form - up to hundreds

15
Convert between standard and expanded form

16
Regroup hundreds, tens, and ones - ways to make a number

17
Guess the number

M. Addition strategies: two digits

1
Break apart a one-digit number to add

2
Use models to add a two-digit and a one-digit number - without regrouping

3
Use models to add a two-digit and a one-digit number - with regrouping

4
Use number lines to add two-digit numbers

5
Break apart a two-digit number to add - sums to 100

6
Use compensation to add on a number line - up to two digits

7
Use compensation to add - up to two digits

8
Use models to add two-digit numbers - without regrouping

9
Use models to add two-digit numbers - with regrouping

10
Use place value to add two-digit numbers - without regrouping

11
Use place value to add two-digit numbers - with regrouping

N. Addition: two digits

1
Add a two-digit and a one-digit number - without regrouping

2
Add a two-digit and a one-digit number - with regrouping

3
Add a multiple of 10 to a two-digit number

4
Add two-digit numbers without regrouping - sums to 100

5
Add two-digit numbers with regrouping - sums to 100

6
Add two-digit numbers - sums to 100

7
Add two-digit numbers vertically - sums to 100

8
Addition word problems - up to two digits

9
Ways to make a number using addition

10
Complete the addition sentence - up to two digits

11
Write the addition sentence - up to two digits

12
Balance addition equations - up to two digits

13
Add two-digit numbers - sums to 200

14
Add two-digit numbers vertically - sums to 200

15
Add three numbers up to two digits each

16
Addition word problems - three numbers up to two digits each

17
Add four numbers up to two digits each

18
Add three or four numbers vertically - up to two digits each

19
Addition word problems - four numbers up to two digits each

O. Subtraction strategies: two digits

1
Break apart a one-digit number to subtract

2
Use models to subtract a one-digit number from a two-digit number - without regrouping

3
Use models to subtract a one-digit number from a two-digit number - with regrouping

4
Use number lines to subtract two-digit numbers

5
Break apart a two-digit number to subtract

6
Use compensation to subtract on a number line - up to two digits

7
Use compensation to subtract - up to two digits

8
Count on to subtract two-digit numbers

9
Use models to subtract two-digit numbers - without regrouping

10
Use models to subtract two-digit numbers - with regrouping

11
Use place value to subtract two-digit numbers - without regrouping

12
Use place value to subtract two-digit numbers - with regrouping

P. Subtraction: two digits

1
Subtract a one-digit number from a two-digit number - without regrouping

2
Subtract a one-digit number from a two-digit number - with regrouping

3
Subtract a one-digit number from a two-digit number

4
Subtract a multiple of 10 from a two-digit number

5
Subtract two-digit numbers - without regrouping

6
Subtract two-digit numbers - with regrouping

7
Subtract two-digit numbers

8
Subtract two-digit numbers vertically

9
Ways to make a number using subtraction

10
Subtraction word problems - up to two digits

11
Complete the subtraction sentence - up to two digits

12
Write the subtraction sentence - up to two digits

13
Balance subtraction equations - up to two digits

Q. Mixed operations: two digits

1
Add and subtract numbers - up to 100

2
Add and subtract with two-digit numbers vertically

3
Which sign (+ or -) makes the number sentence true? - up to 100

4
Ways to make a number using addition and subtraction - up to 100

5
Relate addition and subtraction sentences - up to two digits

6
Complete the addition or subtraction sentence - up to 100

7
Balance addition and subtraction equations - up to 100

8
Which addition or subtraction equation is true? - up to 100

9
Write addition and subtraction sentences

10
Inequalities with addition and subtraction - up to 100

R. Mixed operations word problems: two digits

1
Use models to solve addition and subtraction word problems - up to 100

2
Addition and subtraction word problems - up to 100

3
Match addition and subtraction word problems to equations - up to 100

4
Two-step addition and subtraction word problems - up to 100

S. Addition strategies: three digits

1
Use number lines to add three-digit numbers

2
Break apart a three-digit number to add

3
Use compensation to add - up to three digits

4
Use models to add three-digit numbers - without regrouping

5
Use models to add three-digit numbers - with regrouping

6
Use expanded form to add three-digit numbers - without regrouping

7
Use expanded form to add three-digit numbers - with regrouping

8
Use expanded form to add three-digit numbers

T. Addition: three digits

1
Add 10 or 100 to a three-digit number

2
Add a multiple of 100 to a three-digit number

3
Add a multiple of 10 or 100 to a three-digit number

4
Addition with three-digit numbers - without regrouping

5
Addition with three-digit numbers - with regrouping

6
Addition with three-digit numbers

7
Add three-digit numbers vertically

8
Addition word problems - up to three digits

9
Complete the addition sentence - up to three digits

10
Write the addition sentence - up to three digits

11
Addition up to three digits - fill in the missing digits

12
Balance addition equations - up to three digits

U. Subtraction strategies: three digits

1
Use number lines to subtract three-digit numbers

2
Break apart a three-digit number to subtract

3
Use compensation to subtract - up to three digits

4
Use models to subtract from three-digit numbers - without regrouping

5
Use models to subtract from three-digit numbers - with regrouping

6
Use expanded form to subtract three-digit numbers - without regrouping

7
Use expanded form to subtract three-digit numbers - with regrouping

8
Use expanded form to subtract three-digit numbers

V. Subtraction: three digits

1
Subtract 10 or 100 from a three-digit number

2
Subtract a multiple of 100 from a three-digit number

3
Subtract a multiple of 10 or 100 from a three-digit number

4
Subtract across zeros

5
Subtract from three-digit numbers - without regrouping

6
Subtract from three-digit numbers - with regrouping

7
Subtract from three-digit numbers

8
Subtract from three-digit numbers vertically

9
Subtraction word problems - up to three digits

10
Complete the subtraction sentence - up to three digits

11
Write the subtraction sentence - up to three digits

12
Balance subtraction equations - up to three digits

W. Mixed operations: three digits

1
Break apart a three-digit number to add or subtract

2
Use compensation to add or subtract - up to 1,000

3
Add and subtract numbers up to 1,000

4
Add and subtract with three-digit numbers vertically

5
Addition and subtraction word problems - up to 1,000

6
Solve inequalities using addition and subtraction shortcuts

X. Repeated addition

1
Count equal groups

2
Identify repeated addition for equal groups - sums to 25

3
Write addition sentences for equal groups - sums to 25

4
Identify repeated addition for arrays - sums to 25

5
Write addition sentences for arrays - sums to 25

6
Solve word problems using repeated addition - sums to 25

7
Write stories involving repeated addition - sums to 25

Y. Properties

1
Add in any order

2
Related addition facts

3
Related subtraction facts

4
Fact families

5
Addition and subtraction terms

Z. Estimation and rounding

1
Estimate to the nearest ten

2
Round to the nearest ten

3
Round to the nearest ten or hundred

4
Estimate sums

5
Estimate differences

AA. Money up to $1

1
Names and values of common coins

2
Names and values of all coins

3
Count money - groups of like coins

4
Count money - pennies, nickels, and dimes only

5
Count money up to $1

6
Equivalent amounts of money up to $1

7
Exchanging money - with pictures

8
Exchanging money

9
Exchanging money II

10
Least number of coins

11
Do you have enough money? - up to $1

12
How much more to make a dollar?

13
Correct amount of change

14
Making change

BB. Add and subtract money up to $1

1
Add money up to $1

2
Add money up to $1: word problems

3
Subtract money up to $1

4
Subtract money up to $1: word problems

5
Add and subtract money up to $1

6
Add and subtract money up to $1: word problems

CC. Money up to $100

1
Count money up to $5

2
Do you have enough money? - up to $5

3
Which picture shows more? - up to $5

4
Count money up to $100 - bills

5
Count money up to $100

DD. Time

1
Match digital clocks and times

2
Match analog clocks and times

3
Match analog and digital clocks

4
Read clocks and write times: hour and half hour

5
Read clocks and write times

6
A.M. or P.M.

7
Compare clocks

8
Relate time units

EE. Calendars

1
Months of the year

2
Read a calendar I

3
Read a calendar II

4
Number of days in each month

FF. Data and graphs

1
Which tally chart is correct?

2
Interpret tally charts

3
Create picture graphs

4
Interpret picture graphs

5
Record data in tables

6
Interpret data in tables

7
Create bar graphs

8
Interpret bar graphs I

9
Interpret bar graphs II

10
Which bar graph is correct?

11
Create line plots

12
Interpret line plots

GG. Customary units of length

1
Measure length with inch cubes

2
Measure using an inch ruler

3
Measure to compare length in inches

4
Estimate lengths with inches and feet

5
Estimate lengths with inches, feet, and yards

6
Measure with different customary units: inches, feet, and yards

7
Which customary unit of length is appropriate: inches or feet?

8
Which customary unit of length is appropriate: inches, feet, or yards?

9
Choose the best measuring tool: customary units of length

10
Compare lengths: customary units

11
Customary units of length: word problems

HH. Metric units of length

1
Measure using a centimeter ruler

2
Measure to compare length in centimeters

3
Estimate lengths with centimeters and meters

4
Measure with different metric units

5
Which metric unit of length is appropriate?

6
Choose the best measuring tool: metric units of length

7
Compare lengths: metric units

8
Metric units of length: word problems

II. Two-dimensional shapes

1
Count sides and vertices

2
Identify quadrilaterals

3
Identify pentagons

4
Name polygons: up to 6 sides

5
Classify polygons: up to 6 sides

6
Name polygons: up to 12 sides

7
Classify polygons: up to 12 sides

8
Sort two-dimensional shapes

9
Draw polygons

10
Compose two-dimensional shapes

JJ. Three-dimensional shapes

1
Cubes

2
Select three-dimensional shapes

3
Name the three-dimensional shape

4
Count vertices, edges, and faces

5
Compare vertices, edges, and faces

6
Identify faces of three-dimensional shapes

7
Identify shapes traced from solids

8
Sort three-dimensional shapes

9
Three-dimensional shapes in the real world I

10
Three-dimensional shapes in the real world II

•
New! Three-dimensional shapes in real-world objects

KK. Area and perimeter

1
Tile a rectangle with squares

2
Count the number of squares in a rectangle

3
Area

4
Find the perimeter of a rectangle using centimeter cubes

LL. Fractions

1
Equal parts

2
Identify halves

3
Identify thirds

4
Identify fourths

5
Identify halves, thirds, and fourths

6
Make halves

7
Make thirds

8
Make fourths

9
Make halves, thirds, and fourths

10
Make halves, thirds, and fourths in different ways

11
Identify a half, a third, and a fourth