Subtraction Regrouping with Base Ten Blocks

The video tutorial explains how to subtract 23 from 32 using a step-by-step approach. It begins by representing the numbers with tens and ones, then demonstrates the subtraction process, including regrouping. The tutorial concludes by calculating the final difference, emphasizing the importance of understanding place value and regrouping in subtraction.

What is the first number we are working with in the subtraction?

• 32

• 12

• 23

• 10

Tags

CCSS.1.OA.A.1

How many tens does the number 32 have?

• 1

• 4

• 2

• 3

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

Why did we need to regroup the tens into ones?

• To add more tens

• To make the number smaller

• There were too many ones

• There were not enough ones to subtract

Tags

CCSS.2.NBT.B.7

After regrouping, how many ones did we have?

• 10

• 11

• 9

• 12

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

What is the result of subtracting 3 ones from 12 ones?

• 11

• 9

• 8

• 10

Tags

CCSS.1.OA.A.1

What is the final result of subtracting 23 from 32?

• 10

• 9

• 12

• 11

Tags

CCSS.2.OA.A.1