Question

estimate each sum to the nearest tens.Also find the actual sum.(c) 430+579.​

Answer 1

Rounding off to tens

Rounding off 430 to the nearest tens = 430

Rounding off 579 to the nearest tens=600

On adding we get,

Total required estimation =(430+600)=1030.

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Answer 2

To estimate an amount to the tenth we have 3 steps to follow: ...

STEP 2: We add the rounded numbers. ...

STEP 1: Round the summands.

STEP 2: Add the rounded numbers.

STEP 3: Look at the total amount of rounding.

We have rounded the two summands down.