Best Answer

9+63+8

63+9

Q: Estimate the total weight of two boxes that weigh 9.4 lb and 62.6 lb using rounding and compatible numbers Which estimate is closer to the actual total weight Why?

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50.0000.000

Not in this case.

rounding:9lb+63lb=about 72lb

Estimate 43/81 by using compatible numbers

9 + 63 = 72 lbs.

Compatible numbers would be easier. Rounding gives you 14 x 47. Compatible numbers could be 13 x 50 which would be closer to the actual product.

To estimate quotients, round the dividend and the divisor to compatible numbers.

By rounding off.

we have to find compatible numbers

The best way to estimate a quotient using compatible numbers is to first understand how compatible numbers work. They are numbers that are close in value to the actual numbers and are easily added, subtracted or divided.

by rounding off the numbers

By rounding each of the numbers involved.