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## Estimating Differences

1.
Estimate the difference. Round each number to the nearest hundred, then subtract.
$996 - 257$
1. 600
2. 700
3. 800
4. 900

2.
Estimate the difference. Round each number to the nearest ten, then subtract.
$247 - 106$
1. 100
2. 130
3. 140
4. 200
3.
Estimate the difference. Round each number to the nearest ten, then subtract.
$671 - 485$
1. 180
2. 190
3. 200
4. 210

4.
Estimate the difference. Round each number to the nearest hundred, then subtract.
$218 - 149$
1. 50
2. 100
3. 250
4. 200
5.
Estimate the difference. Round each number to the nearest ten, then subtract.
$54 - 38$
1. 10
2. 20
3. 30
4. 40

6.
Estimate the difference. Round each number to the nearest hundred, then subtract.
$936 - 390$
1. 500
2. 550
3. 600
4. 650
7.
Estimate the difference. Round each number to the nearest ten, then subtract.
$95 - 23$
1. 50
2. 60
3. 70
4. 80

8.
Estimate the difference. Round each number to the nearest hundred, then subtract.
$875 - 482$
1. 300
2. 390
3. 400
4. 490
9.
Estimate the difference. Round each number to the nearest ten, then subtract.
$763 - 89$
1. 600
2. 670
3. 690
4. 700

10.
Estimate the difference. Round each number to the nearest ten, then subtract.
$516 - 61$
1. 430
2. 440
3. 450
4. 460
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