Decimal Computation

Shane cuts 2.8 yards of rope into 4 equal pieces. Which equation can be used to find the length, in yards, of each smaller piece of rope?

• 2.8 ÷ 4 = 7

• 2.8 ÷ 4 = 0.7

• 2.8 x 4 = 11.2

• 2.8 ÷ 4 = 0.07

How much money did Maggie return to her brother?

• 211

• 5.00

• 3.50

• 1.25

Which model represents 2.5 ÷ 5?

• A

• B

• C

• D

A store received a check for thirty-three thousand, eighty-seven dollars and two cents. How is the number written in expanded notation?

• (3 x 10,000) + (3 x 1,000) + (8 x 100) + (7 x 10) + (2 x 0.01)

• (3 x 10,000) + (3 x 1,000) + (8 x 10) + (7 x 1) + (2 x 0.1)

• (3 x 1,000) + (3 x 100) + (8 x 10) + (7 x 1) + (2 x 0.1)

• (3 x 10,000) + (3 x 1,000) + (8 x 10) + (7 x 1) + (2 x 0.01)

Patty is running in intervals. In the first interval she ran for 23.4 seconds. In the second interval she ran for 48.234 seconds and in the third interval she ran for 18.35 seconds. What is the best estimate of the number of seconds it took Patty to run these three intervals?

• 70 seconds

• 80 seconds

• 90 seconds

• 100 seconds

Question 8: A delivery driver drove 146.2 miles over 4 days. He drove the same number of miles each day. How many miles did he drive each day?

• 36.55 miles

• 36.05 miles

• 36.25 miles

• 36.45 miles

How many miles did Hudson jog over these three days?

• 10.35 miles

• 9.25 miles

• 8.5 miles

• 7.5 miles

Micah drank 4.5 bottles of water. Lila drank 3.5 times as much. What was the total number of cups Lila drank yesterday?

• 36

• 157.5

• 15.75

• 3.6

Walter and John are measuring the distances their derby cars travel. Walter’s derby car travels 0.847 meters. John’s car travels less than Walter’s. Which of the following could be the distance John’s car travels?

• 0.849 meters, because 0.849 > 0.847

• 0.738 meters, because 0.738 < 0.847

• 0.9 meters, because 0.847 < 0.9

• 0.85 meters, because 0.847 < 0.85

Which model represents 0.7 x 0.3 = 0.21?

• A

• B

• C

• D