Factors
Which is a factor of 6?
a. 5
b. 3
c. 7
d. 12
b. 3
What is a good estimate for 12 x 23
200
Find the partial products for 34 x51?
4 30 200 1,500
n is an example of?
a. variable
b. product
c. factor
d. compatible letter
a. variabel
What is 50x60?
3,000
The product of two factors is 400 One of the factors is 20. What is the other factor?
20
What is a good estimate for 15 x 25
20x30
What are the partial products of 73 X 81?
3 70 240 5,600
2,318 to the nearest thousand is 2,000 is an example of?
a. estimate
b. compatible numbers
c. rounding
d. product
c. rounding
What is the product of 21×40.
840
The product of two factors is 3,500. One of the factors is 5. What is the other factor?
700
There are 13 girls on Janelle's soccer team. Uniforms cost $32 each. Which equation uses estimation
correctly to show about how much money the team spent?
a. 20 × $30 = $600
b. 5 × $35 = $175
c. 10 × $30 = $300
d. 20 × $32 = $640
c. 10 × $30 = $300
Find the partial products of 64 x 32?
8, 120, 120, 1,800
What is this an example of?
5 x 6= a.
a. numerical expression
b. factors
c. difference
d. distributive property
a. numerical expression
The product of two factors is 2,000. One of the factors is 50. What is the other factor?
a. 20
b. 200
c. 40
d. 400
b. 40
What number is not a factor of 144?
a. 54
b. 12
c. 2
d. 72
a. 54
Don works 18 hours a week. Which expression shows a good way to use rounding to estimate how many hours Don will work in 52 weeks?
�a. 10×50
�b. 20×50
�c. 10×60
�d. 18×60
b. 20 x 50
Which is not a partial product of 12x41?
a. 2
b. 10
c. 18
d. 80
e. 400
c. 18
Which of the following uses properties of operations to help find 27x14?
a. 20+7+10+4
b. 20x7x10x4
c. 27+14
d. (20+7)x (10+4)
d. (20+7)x(10+4)
Select all the expressions that are equal to 260.
a. 23×10
b. 20×10+3×10
c. 13×20
d. 1×20+3×20
e. 10×20+3×20
c. 13 x 20
e. 10x20+3x20
The product of two factors is 6,000. One of the factors is 3,000. What is the other factor?
2
Mr. Luca bought 28 notebooks. Each notebook has 54 pages. What is a good way to estimate the total number of pages Mr. Luca bought?
�a. 20 × 50
�b. 20 × 60
�c. 30 × 50
�d. 28 × 60
c. 30 x 50
What are the partial products and product of 26 X 53?
18, 60, 300, 1,000 '
product:1,378
A florist makes centerpieces. He puts 18 roses in each centerpiece. Which is the best way to use compatible numbers to estimate the number of roses the florist needs for 24 centerpieces? What is the exact number of roses?
a. 10×25=250; 360
b. 20×25=500; 432
c. 25×30=750; 672
d. 30×30=900; 784
b. 20x25=500; 432
A tour bus driver's route is 14 miles.
Which equation represents the number of miles driven after 6 tours this week and 17 tours next week?
a. 14 × (6 × 17) = m
b. 14 × 17 = m
c. 14 × 23 = m
d. 17 × (14 + 6) = m
c. 14x23=m