Question

1. Use your calculator to work out the exact value of 13822×623 divide by 14

2. Using approximations to 1 significant figure, check that your answer to part 1. Make sense

Answer 1

615079

Explanation:

a) (13822x623)/14 = 615079

b) Round everything to one s.f

(10000x600)/10 = 600000

The numbers are roughly the same, meaning the answer to part A makes sense