Question

Estimate the quotient. Explain how u got your answer 77.5÷10.2

Answer 1

Divide 77.5 by 10 = 7.75
Since we divide by 10.2 (and not 10), we **subtract** 2% of 7.75, which is about 0.155 to give 7.595.  (error=-0.04%)

You can also simplify a little by approximating 2% of 7.75 as 0.15 to give 7.6 as your estimate. (error=+0.026%)

exact value = 7.598...