Multiplication and Division
Seth’s homework assignment is to write factor pairs that contain only composite numbers. Seth wrote four factor pairs for the number 132, as shown below.
6 × 22
11 × 12
3 × 44
2 × 66
Which of Seth’s factor pairs contains only composite numbers?
6 x 22
A computer rounded the number 129.257 to the nearest hundredth. What is this number rounded to the nearest hundredth?
129.26
Mr. Anderson had 185 pieces of wood. He sold 25 pieces of wood to his neighbor and stacked the rest of the wood into piles around his house. Each pile of wood contained 40 pieces of wood. Which equation can be used to find p, the number of piles of wood Mr. Anderson made?
F p = (185 +25)+ 40
G p = (185 − 25) − 40
H p = (185+25) x 40
J p = (185 − 25) /40
J
A company makes 625 cell phone cases each day. How many cell phone cases does the company make in 31 days?
19,375
A bank received a check for two thousand, six hundred nine dollars and seventy-five cents. How is this number written in expanded notation?
(1,000 x 2) +(100x6) +(1x9) +(0.1x7) +(0.01 x 5)
Last month Jim drove his car 2,718.3 miles. That brought the car’s total mileage to 87,416 miles. What was the car’s total mileage before last month?
84,697.7
Tara has a box of 908 beads for making bracelets. She wants to put 15 beads on each bracelet she makes. What is the greatest number of bracelets Tara can make with these beads?
60
The table shows the time in seconds it took four swimmers to complete a race.
Swimmer one: 26.15
Swimmer two: 26.5
Swimmer three: 26.1
Swimmer four: 26.05
What is the order in which they completed the race from least to most time?
26.5, 26.15, 26.1, 26.05
Mr. Márquez had 123 eggs in a refrigerator in his restaurant. He put 32 more cartons of eggs in the refrigerator. Each carton contained 18 eggs. Which of these is the best estimate of the number of eggs Mr. Márquez now has in his refrigerator?
700
Freddy exercised 2.5 hours per day on 4 days last week. He burned 330 calories per hour while exercising. How many calories did Freddy burn by exercising last week?
3,330
Joshua compared the values of these decimals.
0.06 0.6 0.006 0.060
Which statement correctly compares two of these numbers?
A 0.6 < 0.06
B 0.006 > 0.6
C 0.6 = 0.06
D 0.060 = 0.06
D
Amy cut 32 feet of chain into pieces that were each 1/4 ft long. How many of these pieces did Amy have after cutting the chain?
128
This equation can be used to find b, the number of dollars Mrs. Colton earned as a sales bonus last week.
b = 429 - (39 × 9)
What was the amount of Mrs. Colton’s bonus?
78
Marsha bought a birthday card for $2.86 and a pen for $1.57. She paid with a $20 bill. How much change should Marsha have received?
$15.57
Cyril put a total of 1/8 lb of gravel into 6 fish tanks. He put the same amount of gravel into each tank. How many pounds of gravel did Cyril put into each fish tank?
1/48 lb