3 years ago

Use rounding or compatible numbers to estimate the sum of 63+71

1 answer:

5 0

Since both are 2 digit numbers, round to the nearest tens place.

63 round to 60 since 3 is less than 5.
71 round to 70 since 1 is less than5.

Add the rounded numbers.

60+70=130

Final answer: 130

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3 years ago

Read 2 more answers

What’s the work and answer? Someone please tell me

NNADVOKAT [17]

Answer:

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Step-by-step explanation:

average = sum of all number ÷ the amount of number

average = 90mm + 74mm + 112mm+ 30mm + 100mm + 44mm = 450mm ÷ 6

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