Compatible Numbers Worksheet
Grade 8 Math worksheet on compatible numbers for estimating sums, differences, products, and quotients.
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Compatible Numbers Worksheet - Grade 8
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Read each question carefully and use compatible numbers to estimate the answers. Show your work where applicable.
1. Estimate the sum: 489 + 712 ≈
2. Estimate the difference: 934 - 278 ≈
3. A store sold 1,245 apples and 876 oranges. Approximately how many fruits were sold in total?
4. Which of the following is the best estimate for 23 × 48?
20 × 40 = 800
20 × 50 = 1000
25 × 50 = 1250
30 × 50 = 1500
5. Estimate the product: 18 × 31 ≈
6. Estimate the quotient: 357 ÷ 6 ≈
7. If 2,450 students are going on a field trip and each bus can hold 50 students, approximately how many buses will be needed?
8. Compatible numbers are always rounded to the nearest ten or hundred.
True
False
9. Using compatible numbers helps in getting an exact answer.
True
False
10. Sarah has $178. She wants to buy books that cost $23 each. Approximately how many books can she buy? Explain your reasoning using compatible numbers.
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