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1. |
Solve. 
|
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|
A. |
17 |
B. |
82 |
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|
C. |
71 |
D. |
81 |
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Hint |
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2. |
Solve. 
|
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|
A. |
95 |
B. |
105 |
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|
C. |
39 |
D. |
85 |
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Hint |
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3. |
Find the number that completes the number sentence. Then identify the property or rule. (21 + 13) + 56 = 21 + ( __ + 56) |
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A. |
13; Associative Property of Addition |
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B. |
13; Commutative Property of Addition |
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C. |
21; Identity Property of Addition |
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D. |
35; Subtraction Rule |
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Hint |
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4. |
Add mentally. 51 + 22 + 9 |
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|
A. |
72 |
B. |
82 |
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|
C. |
92 |
D. |
81 |
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Hint |
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5. |
Estimate. Round to the indicated place value. 1,982 + 2,301; thousands |
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A. |
2,000 + 3,000 = 5,000 |
B. |
1,000 + 2,500 = 3,500 |
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|
C. |
1,000 + 2,000 = 3,000 |
D. |
2,000 + 2,000 = 4,000 |
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Hint |
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6. |
Estimate. Round to the indicated place value. $82.60 − $41.39; tens |
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A. |
$80 − $50 = $30 |
B. |
$90 − $45 = $45 |
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C. |
$90 − $40 = $50 |
D. |
$80 − $40 = $40 |
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Hint |
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7. |
Solve. 
|
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|
A. |
1,068 |
B. |
1,158 |
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|
C. |
1,268 |
D. |
1,168 |
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Hint |
|
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8. |
In which sum will you need to regroup when you add? |
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|
A. |
 |
B. |
 |
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|
C. |
 |
D. |
 |
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Hint |
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9. |
Find 489 − 399. |
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|
A. |
80 |
B. |
180 |
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|
C. |
90 |
D. |
190 |
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Hint |
|
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10. |
Subtract. 
|
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|
A. |
4,254 |
B. |
5,254 |
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|
C. |
5,264 |
D. |
5,256 |
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Hint |
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11. |
Solve. 
|
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|
A. |
644 |
B. |
634 |
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|
C. |
566 |
D. |
534 |
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Hint |
|
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12. |
Solve. 
|
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|
A. |
159 |
B. |
141 |
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|
C. |
59 |
D. |
61 |
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Hint |
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