Question

Choose all the equation pairs that show appropriate compatible numbers that could be used to find a reasonable estimate.


Click or tap each correct answer.

922÷28
900÷30
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1,250÷25
12÷2
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992÷52
1,000÷10
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816÷52
800÷50
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2,966÷69
2,000÷60
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Answer 1

Correct pairs:
- 922 ÷ 28 ≈ 900 ÷ 30 (900/30 = 30; close and easy)
- 816 ÷ 52 ≈ 800 ÷ 50 (800/50 = 16; very close)

Why the others are not appropriate:
- 1,250 ÷ 25 ≠ 12 ÷ 2 (1250/25 = 50, but 12/2 = 6)
- 992 ÷ 52 ≠ 1,000 ÷ 10 (992/52 ≈ 19, but 1000/10 = 100)
- 2,966 ÷ 69 ≠ 2,000 ÷ 60 (2966/69 ≈ 43, but 2000/60 ≈ 33.3)