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1.
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Estimate to choose the most reasonable answer. 4  48
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2.
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Estimate to choose the most reasonable
answer. 7  59
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3.
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Estimate to choose the most reasonable answer. 8  79
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4.
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Estimate to choose the most reasonable answer. 12  39
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5.
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Estimate to choose the most reasonable answer. 18  67
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6.
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Which would you use to estimate 21  29?
a. | 20 30 | b. | 20
20 | c. | 30 30 | d. | 25
25 |
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7.
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Which would you use to estimate 38  59?
a. | 30 60 | b. | 30
50 | c. | 40 60 | d. | 40
50 |
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8.
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Which would you use to estimate 7  378?
a. | 10 300 | b. | 7
300 | c. | 7 400 | d. | 10
400 |
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9.
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Which would you use to estimate 48  72?
a. | 50 70 | b. | 40
80 | c. | 40 70 | d. | 50
80 |
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10.
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Estimate to calculate 31  49.
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