Which is the best estimate for the quotient of 312.21 59.113?

a. 5,000

b. 50

c. 5

d. 0.5

Answer=C

The first step in estimating is to round the numbers into simpler numbers so that we can easily do the math in our head ...

312.21 becomes 300

59.113 becomes 60

300:60=5

Answer=C