# Common Core: 1st Grade Math : Knowing How and When to Subtract

## Example Questions

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### Example Question #1 : Knowing How And When To Subtract

Explanation:

To subtract we can count backwards. Start at  and count back

### Example Question #2 : Knowing How And When To Subtract

Explanation:

To subtract we can count backwards. Start at  and count back .

### Example Question #3 : Knowing How And When To Subtract

Explanation:

To subtract we can count backwards. Start at  and count back .

### Example Question #4 : Knowing How And When To Subtract

Explanation:

To subtract we can count backwards. Start at  and count back .

### Example Question #5 : Knowing How And When To Subtract

Explanation:

To subtract we can count backwards. Start at  and count back .

### Example Question #1 : Knowing How And When To Subtract

Explanation:

To subtract we can count backwards. Start at  and count back

### Example Question #7 : Knowing How And When To Subtract

Explanation:

To subtract we can count backwards. Start at  and count back .

### Example Question #8 : Knowing How And When To Subtract

Explanation:

To subtract we can count backwards. Start at  and count back .

### Example Question #9 : Knowing How And When To Subtract

Explanation:

To subtract we can count backwards. Start at  and count back