Basic Math Examples

656 - 521

$656 - 521$

Step 1

Round

656

$656$ to

650

$650$ .

650 - 521

$650 - 521$

Step 2

Round

- 521

$- 521$ to

- 500

$- 500$ .

650 - 500

$650 - 500$

Step 3

Subtract

500

$500$ from

650

$650$ .

150

$150$

Step 4

The approximate value of

656 - 521

$656 - 521$ found by front end estimation.

656 - 521 \approx 150

$656 - 521 \approx 150$

Enter a problem...

[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$