# Patterns

Here is a list of all of the skills that cover patterns! These skills are organized by grade, and you can move your mouse over any skill name to view a sample question. To start practicing, just click on any link. IXL will track your score, and the questions will automatically increase in difficulty as you improve!

## Fourth-grade skills

- B.6Addition patterns over increasing place values
- C.4Subtraction patterns over increasing place values
- D.8Multiplication patterns over increasing place values
- E.16Division patterns over increasing place values
- L.1Geometric growth patterns
- L.2Increasing growth patterns
- L.3Numeric patterns: word problems
- L.4Patterns involving addition and multiplication
- L.5Mixed patterns review
- O.9Time patterns
- Q.7Patterns of equivalent fractions
- U.19Number sequences involving decimals

## Fifth-grade skills

- A.7Even and odd arithmetic patterns
- C.17Number sequences involving decimals
- F.3Multiplication patterns over increasing place values
- H.7Division patterns over increasing place values
- I.2Decimal division patterns over increasing place values
- L.10Arithmetic sequences with fractions
- L.11Geometric sequences with fractions
- T.1Geometric growth patterns
- T.2Increasing growth patterns
- T.3Patterns involving addition and multiplication
- T.4Numeric patterns: word problems
- T.5Mixed patterns review
- X.7Time patterns

## Algebra 1 skills

- P.1Identify arithmetic and geometric sequences
- P.2Arithmetic sequences
- P.3Geometric sequences
- P.4Evaluate variable expressions for number sequences
- P.5Write variable expressions for arithmetic sequences
- P.6Write variable expressions for geometric sequences
- P.7Number sequences: mixed review
- CC.2Identify linear, quadratic, and exponential functions from tables

## Algebra 2 skills

- BB.1Classify formulas and sequences
- BB.2Find terms of an arithmetic sequence
- BB.3Find terms of a geometric sequence
- BB.4Find terms of a recursive sequence
- BB.5Evaluate formulas for sequences
- BB.6Write a formula for an arithmetic sequence
- BB.7Write a formula for a geometric sequence
- BB.8Write a formula for a recursive sequence
- BB.9Sequences: mixed review
- BB.10Introduction to sigma notation
- BB.11Identify arithmetic and geometric series
- BB.12Find the sum of a finite arithmetic or geometric series
- BB.13Introduction to partial sums
- BB.14Partial sums of arithmetic series
- BB.15Partial sums of geometric series
- BB.16Partial sums: mixed review
- BB.17Convergent and divergent geometric series
- BB.18Find the value of an infinite geometric series
- BB.19Write a repeating decimal as a fraction

## Precalculus skills

- U.1Find terms of a sequence
- U.2Find terms of a recursive sequence
- U.3Identify a sequence as explicit or recursive
- U.4Find a recursive formula
- U.5Find recursive and explicit formulas
- U.6Convert a recursive formula to an explicit formula
- U.7Convert an explicit formula to a recursive formula
- U.8Convert between explicit and recursive formulas
- U.9Introduction to sigma notation
- U.10Identify arithmetic and geometric series
- U.11Find the sum of a finite arithmetic or geometric series
- U.12Introduction to partial sums
- U.13Partial sums of arithmetic series
- U.14Partial sums of geometric series
- U.15Partial sums: mixed review
- U.16Convergent and divergent geometric series
- U.17Find the value of an infinite geometric series
- U.18Write a repeating decimal as a fraction