Week 9 Math Review: Rounding Decimals

Which expression is true?

• 0.15 > 0.145

• 0.254 > 0.42

• 0.450 > 0.45

• 0.052 > 0.402

Which statement correctly rounds the decimal to

the nearest tenth?

• The number 7.21 rounds to 7.3.

• The number 7.45 rounds to 7.4.

• The number 7.56 rounds to 8.0.

• The number 7.88 rounds to 7.9.

Which statement correctly rounds the decimal to

the nearest hundredth?

• The number 103.489 rounds to 103.00.

• The number 164.765 rounds to 164.77.

• The number 119.502 rounds to 119.51.

• The number 198.117 rounds to 200.00.

Which symbol should replace to make the O

comparison TRUE?

• <

• >

• =

• ≥

Kaitlyn wrote this comparison on the board:

3.808 < 3.818

Part A: Is Kaitlyn's comparison correct? Justify you

answer.

Part B: Kaitlyn wanted to make a new comparison by

replacing 3.818 with a different number that is

less than 3.808 without changing the digits in the

ones or hundredths place. What number could

she replace 3.818 with so the new number is less

than 3.808? Explain your thinking.