Understanding Ungrouping in Subtraction

Understanding Ungrouping in Subtraction

Assessment

Interactive Video

Mathematics

2nd - 3rd Grade

Hard

Created by

Thomas White

FREE Resource

The video tutorial explains how to subtract a number from 100 using the ungrouping method. It begins by highlighting the need for ungrouping when there are insufficient ones or tens to subtract from. The process involves ungrouping the hundreds place to create tens, and then ungrouping the tens to create ones. The tutorial walks through the subtraction of 37 from 100, demonstrating each step of ungrouping and subtraction, resulting in the final answer of 63.

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What mathematical operation are we focusing on in this lesson?

Multiplication

Addition

Division

Subtraction

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why do we need to ungroup when subtracting 37 from 100?

Because we have zero ones and tens

Because we have enough ones and tens

Because we have extra hundreds

Because we have more ones than needed

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in ungrouping when subtracting from 100?

Ungrouping the ones

Ungrouping the thousands

Ungrouping the tens

Ungrouping the hundreds

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the hundreds place after ungrouping?

It remains the same

It decreases by two

It becomes zero

It increases by one

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

After ungrouping the hundreds, how many tens do we have?

Ten tens

Nine tens

Zero tens

One ten

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What do we do after ungrouping the tens?

Subtract the tens

Add more ones

Subtract the ones

Add more tens

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many ones do we have after ungrouping the tens?

One one

Ten ones

Nine ones

Zero ones

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