Question

Use rounding or compatible numbers to estimate the difference 762- 332

Answer 1

You would round 762 to 800, then you would round 332 to 300. You would take those 2 numbers and put them in the questions and it should look like this:
800-300, then you would subtract
Good luck!

Answer 2

Alright mate. First off, you're in elementary... get off your technology and learn you something. Reguardless- Round 762 down to 760 and 332 down to 330. 
now use mental math to do 760-330 and you'll get 430.