2-Digit by 2-Digit Subtraction with Regrouping Challenge

What is the rightmost digit in any number called?

• Hundred's column

• One's column

• Ten's column

• Unit's place

How many cubes does one rod equal in base 10 blocks?

• 10 cubes

• 5 cubes

• 1 cube

• 20 cubes

What is the result of subtracting 10 from 12 using base 10 blocks?

• 10

• 0

• 2

• 12

What does the poem suggest if there's more on the floor?

• Go next door and get 10 more

• Subtract without borrowing

• Add 10 more

• Stop subtracting

In the subtraction of 89 - 9, what does the poem indicate the result should be?

• 1

• 0

• 9

• 80

What is the result of 22 minus 16 using regrouping?

• 6

• 8

• 4

• 10

After regrouping in the subtraction of 23 - 14, how many cubes are left?

• 9 cubes

• 11 cubes

• 10 cubes

• 12 cubes

What is the final result of subtracting 33 from 26 without using base 10 blocks?

• 7

• 8

• 6

• 5

When subtracting 52 from 34, why do we need to regroup?

• No regrouping needed

• Because 4 is greater than 2

• Because 5 is less than 3

• Because 2 is equal to 4

What is the outcome of the subtraction 52 - 34 after regrouping?

• 18

• 17

• 16

• 19