Basic Math Examples

$212 - 107$

Step 1

Round

$212$ to

$200$ .

$200 - 107$

Step 2

Round

$- 107$ to

$- 100$ .

$200 - 100$

Step 3

Subtract

$100$ from

$200$ .

$100$

Step 4

The approximate value of

$212 - 107$ found by front end estimation.

$212 - 107 \approx 100$

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