Rounding Numbers

Pretest Questions

1. Round 38 to the nearest ten.

2. What is 638 rounded to the nearest hundred?

3. Round 421.361 to the nearest tenth.

4. Which of the numbers below is 350 when rounded to the nearest ten and 400 when rounded to the nearest hundred?

5. What is 5.15 rounded to the nearest tenth?

6. Abe, Barb, Carol and Dan are playing a game. The winner is the person whose number is greatest when rounded to the nearest tenth. Abe's number is 0.455, Barb's number is 0.099, Carol's number is 0.611, and Dan's number is 0.549. Who has the highest number?

7. Joey has 952 marbles in his bag. How many marbles does Joey have rounded
off to the nearest ten?

8. Joey has 952 marbles in his bag. How many marbles does Joey have rounded off to the nearest hundred?