Answer:
the opposite
Step-by-step explanation:
Round each number to the nearest 10.
33 rounds to 30 and 89 rounds to 90, thus in your head it's easier to mentally add 30 + 90 for purposes of estimation.
Answer:
Step-by-step explanation:
Answer:
0.3
Step-by-step explanation:
just divide on a calculator 3/9 and u get 0.3