For each calculation, mentally obtain an estimate of the answer and write it in the blank. Use number sense. Then write enough to make your thought process clear.
A) 34% discount on an $89 suitcase _____
B) 0.26 × 43,135 ? _____
C) 61 × 334 ?_____
D) 74.35% × 1195 × 0.9837 ? _____
E) (1201.794 ÷ 0.25) + 0.0423 ?_____
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Q11: Determine each calculation mentally, writing enough to
Q12: Tell how one might mentally compute each
Q13: Show how you would estimate:
A) 391 ×
Q14: Using benchmarks, find an estimate of
Q15: Joe Blue was estimating 92 × 31.
Q17: Is 40 ÷ 1.99 less than, equal
Q18: Why is this student NOT showing good
Q19: 0.7614987 × 159.23842 is about:
A) 1.2.
B) 12.
C)
Q20: 1.334496 × 301.66 is CLOSEST to:
A) 400.
B)
Q21: 278.4132987 × 0.2617944285 is about:
A) 7.
B) 70.
C)
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