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Keith_Richards [23]
2 years ago
10

79 x 31 rounding or compatible numbers . show how you estimate

Mathematics
1 answer:
Lubov Fominskaja [6]2 years ago
8 0

Answer:

80 × 30 = 2,400

Step-by-step explanation:

We can easily round 79 up to 80 and round 31 down to 30. This would make our expression 80 × 30, which is much easier to compute. We just take 8 × 3 (which is 24) and add two zeros onto the end of the number. This yields us an answer of 2,400 which is very close to the actual multiplication of 79 × 31 which is 2,449 (only 49 more than our estimation).

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