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1. |
Round to the given place. 55,922; nearest ten thousand |
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A. |
56,000 |
B. |
55,000 |
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C. |
60,000 |
D. |
50,000 |
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Hint |
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2. |
Find the sum. 
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A. |
80,885 |
B. |
81,885 |
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C. |
81,785 |
D. |
80,785 |
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Hint |
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3. |
Find the product. 
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A. |
$16,020 |
B. |
$1,620 |
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C. |
$10,620 |
D. |
$10,260 |
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Hint |
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4. |
Selena is finding 20 × 160. Explain why she can think of 20 × 160 as 2 × 10 × 16 × 10. |
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A. |
20 = 2 × 10 and 160 = 16 × 10, so 20 × 160 = 2 × 10 × 16 × 10 |
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B. |
20 = 2 + 10 and 160 = 16 + 10, so 20 × 160 = 2 + 10 × 16 + 10 |
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C. |
20 = 2 × 10 and 16 = 16 × 100, so 20 × 160 = 2 × 10 × 16 × 10 |
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D. |
20 = 2 × 10 and 160 = 16 × 10, so 20 + 160 = 2 × 10 + 16 × 10 |
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Hint |
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5. |
Estimate. Tell whether the estimate is greater or less than the actual product.  |
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A. |
60 × 20 = 1,200; greater |
B. |
50 × 10 = 500; less |
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C. |
50 × 10 = 50; less |
D. |
60 × 15 = 800; greater |
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Hint |
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6. |
Estimate. Tell whether the estimate is greater or less than the actual product. 
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A. |
25 × 15 = 375; greater |
B. |
30 × 20 = 600; greater |
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C. |
20 × 20 = 400; less |
D. |
25 × 10 = 250; less |
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Hint |
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7. |
Find the product. 
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A. |
$7,644 |
B. |
$7,244 |
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C. |
$7,464 |
D. |
$7,446 |
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Hint |
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8. |
Which product is greater: 25 × 70 or 28 × 70? How do you know? |
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A. |
28 × 70 is greater because it is 70 greater than 25 × 70. |
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B. |
28 × 70 is greater because it is 3 greater than the product 25 × 70. |
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C. |
28 × 70 is greater because 70 is greater than 28. |
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D. |
28 × 70 is greater because it is 3 × 70 or 210 greater than the product 25 × 70. |
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Hint |
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9. |
Find the product. 
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A. |
3,035 |
B. |
4,035 |
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C. |
5,035 |
D. |
2,035 |
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Hint |
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10. |
Find 724 × 34. |
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A. |
24,616 |
B. |
24,116 |
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C. |
24,111 |
D. |
24,116 |
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Hint |
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11. |
Find 17,624 × 52. |
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A. |
916,448 |
B. |
169,448 |
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C. |
946,448 |
D. |
96,448 |
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Hint |
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12. |
Find 33,327 × 46. |
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A. |
1,553,042 |
B. |
533,042 |
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C. |
1,533,042 |
D. |
153,042 |
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Hint |
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