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## PowerPoint Slideshow about ' Subtracting Across Zeros' - vielka-cline

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### Subtracting Across Zeros

Fourth Grade

Eight cannot be subtracted from four so we have to go to the next door neighbor to borrow.

704

- 438

But what happens when the next door neighbor is the number zero?

How can I borrow when the neighbor is a zero?

704

- 438

When the next door neighbor is a zero, you can’t borrow from it. So, you must continue to the next neighbor to see if you can borrow from it.

How can I borrow when the neighbor is a zero?

704

- 438

In this problem, the next neighbor is the number seven. We are able to borrow from this neighbor.

First you borrow from the seven and make it a six. Then you can go back to the zero and make it a ten.

10

6

704

- 438

When the next door neighbor is a zero, you can’t borrow from it. So, you must continue to the next neighbor to see if you can borrow from it.

300

- 266

In this problem, the next neighbor is the number three. We are able to borrow from this neighbor.

First you borrow from the three and make it a two. Then you can go back to the zero and make it a ten.

10

2

300

- 266

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