Question

What is the estimated sum of an orange that costs $0.69 and a hot pepper that costs $0.15 if their prices are rounded to the nearest ten cents and then added together?
(A)$0.70
(B)$0.80
(C)$0.90
(D)$1.00

Answer 1

The answer is (c)

- Since $0.69 has a nine in the ones column, you'd round it up to $0.70.

- Since $0.15 has a five in the ones column, you'd also round it up. To $0.20.

- $0.20+$0.70=$0.90