3-47 Regrouping with a Zero

Lesson List

Hundreds	Tens	Ones

7	0	4
3	5	6

Sometimes you may need to borrow, or regroup, and the next number is a zero. You will need to borrow from one more place value to the left.

Look at the example below.

First subtract the ones.

Borrow from the tens.

When the number is zero, you will need to move one place value to the left (Hundreds). Borrow one hundred to the tens place value. Then move one ten to the ones place value.

Hundreds	Tens	Ones
6	9	14

3	5	6

Next subtract the ones.

Then the tens.

And the hundreds.

Hundreds	Tens	Ones
6	9	14

3	5	6

3	4	8

Look at the problem below.

Borrow (regroup).

Hundreds	Tens	Ones
4	9	13

2	3	5

Subtract.

Hundreds	Tens	Ones
4	9	13

2	3	5

2	6	8

Hundreds	Tens	Ones
5	9

1	3	5

Hundreds	Tens	Ones
4

2	4	4

Hundreds	Tens	Ones


1	4	3

Hundreds	Tens	Ones

5	0	5
1	3	7

Hundreds	Tens	Ones

6	0	6
2	4	7

Hundreds	Tens	Ones

7	0	1
5	4	3

Hundreds	Tens	Ones

9	0	5
2	3	6

Hundreds	Tens	Ones

8	0	1
6	7	7

Hundreds	Tens	Ones

6	0	3
4	7	8

Hundreds	Tens	Ones

8	0	2
3	2	5

Hundreds	Tens	Ones

4	0	8
2	3	9

Hundreds	Tens	Ones

7	0	5
5	8	7

Hundreds	Tens	Ones

4	0	4
1	6	5

Hundreds	Tens	Ones

5	0	2
1	5	4

Hundreds	Tens	Ones

6	0	1
3	7	6

Hundreds	Tens	Ones

5	0	4
1	2	7

Hundreds	Tens	Ones

3	0	7
2	9	9

Hundreds	Tens	Ones

7	0	6
4	5	7

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3-47 Regrouping with a Zero

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