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# CCSS.MATH.CONTENT.4.NBT.5

### Description

Multiply a whole number of up to four digits by a one-digit whole number, and multiply two two-digit numbers, using strategies based on place value and the properties of operations. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models. (Grade 4 expectations in this domain are limited to whole numbers less than or equal to 1,000,000. A range of algorithms may be used.)

## 4th grade Multiplication of 2-digit by 1-digit numbers using traditional method

This unit is designed to be used as a reteaching tool for 4th/5th students in the resource room or general education classroom who are having difficulty mastering the concept of 2-digit by 1-digit multiplication using the traditional method.  CCSS.Math.Content.4.NBT.B.5

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