Question

Estimate the sum of 196 and 482

Answer 1

we know that

A quick way to estimate the sum of two numbers is to round each number and then add the rounded numbers

case a) We round the number to the nearest hundred

so

$196$ Round up is equal to $200$

$482$ Round up is equal to $500$

Find the estimate sum

$200+500=700$

case b) We round the number to the nearest tens

so

$196$ Round up is equal to $200$

$482$ Round down is equal to $480$

Find the estimate sum

$200+480=680$

Answer 2

196 --> 200
482 --> 480

200
+480
--------
680