Mastering 2-Digit Subtraction with Regrouping

This video tutorial guides second graders through the process of two-digit subtraction with regrouping. It begins with a review of previously learned concepts and provides step-by-step examples of solving subtraction problems such as 34 minus 16, 42 minus 15, 81 minus 37, and 70 minus 52. The tutorial emphasizes the importance of checking if there are enough ones to subtract and using regrouping when necessary. Visual aids and verification steps are used to ensure understanding.

What is the result of 34 minus 16 when you regroup correctly?

• 16

• 18

• 22

• 20

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Do you need to regroup when subtracting 47 from 15?

• Always

• Sometimes

• No

• Yes

In the subtraction of 42 from 15, how many ones do you have after regrouping?

• 8 ones

• 14 ones

• 10 ones

• 12 ones

Tags

CCSS.5.NBT.B.7

What is the final result of subtracting 15 from 42 using regrouping?

• 26

• 27

• 25

• 28

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

When subtracting 81 from 37, how many ones are left after regrouping and subtracting?

• 6 ones

• 4 ones

• 5 ones

• 3 ones

Tags

CCSS.2.NBT.B.7

What is the final result of 81 minus 37 with correct regrouping?

• 45

• 47

• 44

• 46

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

In the problem 70 minus 52, what do you need to do with the tens to handle the zero in the ones place?

• Regroup one ten

• No change needed

• Subtract one ten

• Add one ten

Tags

CCSS.1.NBT.C.5

After regrouping in 70 minus 52, how many ones are available to subtract?

• 12 ones

• 9 ones

• 8 ones

• 10 ones

Tags

CCSS.6.NS.B.3

What is the final result of 70 minus 52 after handling the tricky zero in the ones place?

• 20

• 22

• 16

• 18

Tags

CCSS.2.NBT.B.7

How many tens are left after subtracting five tens from six in the problem 70 minus 52?

• Two tens

• Three tens

• One ten

• No tens

Tags

CCSS.1.NBT.C.5