Two-Digit Subtraction with Regrouping Quiz

What is the main focus of this lesson?

• Addition of two-digit numbers

• Subtraction of two-digit numbers with regrouping

• Division of two-digit numbers

• Multiplication of two-digit numbers

Why do we need to regroup in the problem 51 - 27?

• Because 51 is smaller than 27

• Because the number in the ones place of 51 is smaller than in 27

• Because 27 is a prime number

• Because 51 is an odd number

What is the first step in solving a subtraction problem with regrouping?

• Divide the numbers

• Multiply the numbers

• Check if regrouping is needed

• Add the numbers

What do we do when we don't have enough ones to subtract?

• Multiply the ones

• Add more ones

• Borrow from the tens place

• Skip the subtraction

After borrowing, how many ones do we have in the problem 51 - 27?

• 7

• 9

• 5

• 11

What is the result of 51 - 27 after regrouping and solving?

• 22

• 28

• 26

• 24

What do we do after borrowing from the tens place?

• Subtract the tens

• Divide the ones

• Add the borrowed ten to the ones

• Multiply the tens

In the new problem 43 - 15, why do we need to regroup?

• Because 43 is smaller than 15

• Because the number in the ones place of 43 is smaller than in 15

• Because 43 is an even number

• Because 15 is a prime number

How many ones do we have after regrouping in the problem 43 - 15?

• 10

• 13

• 11

• 12

What is the final result of 43 - 15?

• 28

• 30

• 26

• 24