“This was the best money I have ever spent on a teaching tool.” ~ a teacher in Wisconsin

← All Standards

Grade 4

CCSS Math Standard: 4.NBT.5

Use place value understanding and properties of operations to perform multi-digit arithmetic. 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.)

Broken Calculator: Multiplication Cross Product

Broken Calculator: Multiplication Cross Product

This calculator multiplies almost correctly. Students will find the one step it skips.

Back to School Math Worksheets

Back to School Math Worksheets

In these math problems, the solution is already given. But another number is missing!

Factors and Codes: First Names (Episode 2)

Factors and Codes: First Names (Episode 2)

Scrambled up somewhere in 161,000 is a first name. Can you find it!?