Decimal Estimation and Calculation Quiz

Kayla’s dollhouse has 15.15 square feet downstairs and 6.45 square feet upstairs. What is the estimated total area if you round the decimals to the nearest tenth?

• 21.0

• 21.6

• 21.7

• 22.0

Estimate the sum of $12.15, $16.85, and $1.74 by rounding each number to the nearest tenth.

• $30.70

• $30.80

• $31.00

• $30.00

Which decimal makes this equation true? 4.95 + □ = 12.1

• 7.15

• 7.85

• 8.15

• 8.85

Lawrence spent $1.89 on a bottle of paint and $0.45 on a brush. What was the total amount he spent?

• $2.34

• $2.44

• $2.54

• $2.64

What is Ed's combined distance for the first three days?

• 38.58 miles

• 39.58 miles

• 37.58 miles

• 36.58 miles

How much farther did Ed run the second day than the first day?

• 0.42 miles

• 0.52 miles

• 0.32 miles

• 0.62 miles

Which two memorials have the greatest difference in area?

• Thomas Jefferson and Franklin Delano Roosevelt

• Vietnam Veterans and World War I

• Thomas Jefferson and Vietnam Veterans

• Franklin Delano Roosevelt and World War I

What is the difference between the areas of the Thomas Jefferson Memorial and the Vietnam Veterans Memorial?

• 9.6 acres

• 8.7 acres

• 9.8 acres

• 8.9 acres

What is the rounded length of Kassandra's patio to the nearest whole number?

• 13 meters

• 12 meters

• 11 meters

• 14 meters

What is the rounded width of Kassandra's patio to the nearest whole number?

• 6 meters

• 5 meters

• 4 meters

• 7 meters