Question

Use compatible numbers to estimate the quotient.10.) 490 ÷ 8

Answer 1

Given

`490/8`

To Determine: The quotient of the given using compatible numbers

Solution

Note that a compatible number is a number that would divide the dividend without any remainder.

The number that is close to 8 that will divide 490 without a remainder is given as

`490/7=70`

Also

`480/8=60`

The actual division is

`490/8=61.25`

When we divide by 7, we go 70 and when we change the numerator to 480 and divide by 8, we got 60. Also, the real calculation is given as 61.25

It can be concluded that the estimate of the given is about 60

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