Two Digit Subtraction with Regrouping Techniques

The video tutorial explains subtraction with two-digit numbers, focusing on the concept of regrouping. It begins with an introduction to the topic, followed by a visual representation of the number 42 using tens and ones. The tutorial then demonstrates subtraction with regrouping using the example of 42 minus 25, showing how to handle situations where the top number is smaller than the bottom number in the ones column. A second example, 63 minus 37, is solved without drawing, reinforcing the regrouping technique. The video aims to help students understand and apply subtraction with regrouping effectively.

What is the first step in subtraction with regrouping when the ones place is insufficient?

• Borrow from the tens place

• Ignore the ones place

• Subtract the tens first

• Restart the problem

Tags

CCSS.7.NS.A.1C

What is the first step when you cannot subtract the ones directly in a two-digit subtraction?

• Give up on the problem

• Regroup the tens to ones

• Add more ones

• Subtract the tens

Tags

CCSS.2.NBT.B.6

After regrouping, how many ones does the number 42 have?

• Twelve ones

• Two ones

• Ten ones

• Three ones

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

What is the process called when you convert a ten into ten ones?

• Recounting

• Reforming

• Regrouping

• Reduction

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

How many tens are left in the number 42 after one ten is regrouped?

• One ten

• Two tens

• Four tens

• Three tens

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

What is the result of 42 minus 25?

• 15

• 17

• 19

• 21

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

What is the result of subtracting 5 from 12 in the context of the problem 42 minus 25?

• 8

• 7

• 6

• 5

Tags

CCSS.7.NS.A.1C

In the problem 63 minus 37, what does the number 63 become after regrouping?

• 63 with thirteen ones

• 53 with three ones

• 63 with three ones

• 53 with thirteen ones

Tags

CCSS.2.NBT.B.7

After regrouping in the problem 63 minus 37, how many ones are available for subtraction?

• Seven ones

• Three ones

• Thirteen ones

• Ten ones

Tags

CCSS.6.NS.B.3

What is the final answer to the subtraction problem 63 minus 37?

• 26

• 24

• 28

• 30

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2