Regrouping Techniques for Subtraction in 2nd Grade Math

This video tutorial covers the concept of regrouping in subtraction, explaining how to handle cases where there are not enough ones to subtract. It provides multiple examples, such as 46 minus 17 and 54 minus 16, demonstrating the step-by-step process of regrouping tens into ones. The tutorial also includes higher-order thinking skills by solving a problem where a number is subtracted from 45 to get 28. Additionally, it applies subtraction to real-world scenarios, like calculating the number of seashells Alicia has compared to Bob. The video concludes with practice problems and tips for effective regrouping.

What is the result of subtracting 6 from 32 using regrouping?

• 30

• 24

• 28

• 26

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

When subtracting 17 from 46, how many ones are left after regrouping and subtracting?

• 6

• 9

• 7

• 8

Tags

CCSS.5.NBT.B.7

What is the final result when subtracting 16 from 54?

• 38

• 36

• 40

• 42

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

After subtracting 19 from 63, what is the remaining number?

• 44

• 47

• 45

• 46

Tags

CCSS.7.NS.A.1C

What number must be subtracted from 45 to get 28?

• 17

• 18

• 19

• 16

Tags

CCSS.2.OA.A.1

How many seashells does Alicia have if Bob has 52 and she has 19 fewer?

• 32

• 33

• 34

• 31

Tags

CCSS.1.OA.A.1

Is regrouping necessary when subtracting 14 from 38?

• Sometimes

• Always

• Yes

• No

Tags

CCSS.2.NBT.B.7

Do we need to regroup when subtracting 16 from 53?

• No

• Always

• Yes

• Sometimes

Tags

CCSS.2.NBT.B.7

What is the outcome of 74 minus 18 with regrouping?

• 57

• 56

• None of the above

• 58

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

What is the key concept to remember when regrouping in subtraction?

• A ten becomes ten ones

• A ten becomes one hundred

• Subtraction does not require regrouping

• Regrouping is optional

Tags

CCSS.2.NBT.B.5