Compare & Round Decimals

Makayla's mass at birth was 3.747 kilograms. Her brother John's mass at birth was 3.477 kilograms. Whose mass at birth rounded to the nearest whole kilogram was 4 kilograms?

• Makayla

• John

A grocery store charges to the nearest tenth of a pound for tomatoes. Landon has 2.386 pounds of tomatoes. How many pounds of tomatoes will the store charge Landon for?

Ellie purchases 14.297 gallons of gas. Her friend Olivia purchases 14.209 gallons of gas. Write an inequality statement comparing the two gas purchases.

Which of the following comparisons is NOT true?

• 42.300 = 42.3

• 5.020 < 5.20

• 0.149 < 1.490

• 108.308 > 108.4

Malcolm rounds each weight shown below to the nearest hundredth of a pound.

Which weight does NOT round to 2.46?

• 2.456 pounds

• 2.457 pounds

• 2.454 pounds

• 2.459 pounds

Which comparison is NOT true?

• 1.78 < 1.92

• 1 78/100 < 1 92/100

• 1 + (7 x 1/10) + (8 x 1/100) < + (9 x 1/10) + (2 x 1/100)

• 1 + 70/10 + 80/100 < 1 + 9/10 + 2/100

Tori and Alvin use a stopwatch to record the amount of time it takes a marble to roll down a ramp. Tori's marble takes 2.835 seconds, while Alvin's marble takes 2.845 seconds. Is the following statement TRUE or FALSE?

Rounded to the nearest tenth, both times are the same.

• True

• False

Tori and Alvin use a stopwatch to record the amount of time it takes a marble to roll down a ramp. Tori's marble takes 2.835 seconds, while Alvin's marble takes 2.845 seconds. Is the following statement TRUE or FALSE?

Rounded to the nearest hundredth, both times are the same.

• True

• False

Tori and Alvin use a stopwatch to record the amount of time it takes a marble to roll down a ramp. Tori's marble takes 2.835 seconds, while Alvin's marble takes 2.845 seconds. Is the following statement TRUE or FALSE?

Both times are more than halfway between 2.84 and 2.85.

• True

• False

Tori and Alvin use a stopwatch to record the amount of time it takes a marble to roll down a ramp. Tori's marble takes 2.835 seconds, while Alvin's marble takes 2.845 seconds. Is the following statement TRUE or FALSE?

Both times are closer to 2.8 than 2.9.

• True

• False