2.2 extra practice

Is $7.48 closest to $6, $7 or $8?

• $6

• $7

• $8

• It is right in the middle of $7 and $8

Round the Olympic time of 56.389 seconds to the nearest tenth of a second.

• 56.0

• 57

• 56.4

• 56.39

Round the number 57.81492 to the nearest hundredths.

• 57.82

• 58.00

• 57.80

• 57.81

Which of the following numbers would round to 13.75?

• 13.754

• 13.70

• 13.756

• 13.747

Jerry spent $5.91, $7.27, and $12.60 on breakfast, lunch, and dinner. Approximately how much did his meals cost in all?

• about $24

• about $26

• about $25

• about $27

Maria needs to buy wood for a door frame. She needs two pieces that are 6.21 feet long and one piece that is 2.5 feet long. About how much wood should she buy?

• about 15 feet

• about 9 feet

• about 17 feet

• about 14 feet

Shanda ran a lap in 6.78 minutes. Assuming she maintains this time for every lap she runs, estimate the time it would take her to run three laps.

• 25 minutes

• 21 minutes

• 18 minutes

• 10 minutes

A basketball player scores an average of 13.2 points per game. During a 62-game season, he would be expected to score about ______ points. (Assume he will play every game.)

• 600 points

• 1,000 points

• 800 points

• 400 points

Use estimation to complete the following: The difference of 31.245 - 1.396 is between _____.

• 29 and 29.5

• 29.5 and 30

• 30 and 30.5

• 30.5 and 31

When rounding to the nearest one's place, which of the following results in 430? More than one option may be correct. Select all the correct answers.

• 429.67

• 430.49

• 429.365

• 430.05