Multiply:
706 × 8
5,648
Estimate the product of 48 × 53 by rounding each number to the nearest ten.
50x50=2500
True or False:
367 × 24 = 8808
True
At a charity walk, Daniel walked 1,035 steps. His older brother Marcus walked 5 times as many steps as Daniel.
Create a bar diagram that represents the amount of steps that they both walked without solving.
Daniel: | 1,035 |
Marcus: | 1,035 | 1,035 | 1,035 | 1,035 | 1,035 |
What is 43 × 102 ?
4,300
A delivery truck carries 7 boxes of books. Each box contains 128 books.
How many books are there in total on the truck?
There are 896 books in total on the truck.
A toy company packed 40 boxes for delivery. Each box weighed 18 pounds. What was the total weight of all the boxes?
40×18=w
w=720 pounds
Multiply: 427×53
22,631
During a school field trip, Mia collected 842 stickers for her scrapbook. Her best friend Zoe collected 3 times as many stickers as Mia.
Write and solve an equation to find s, the number of stickers Zoe collected.
Equation: 3 x 842 = s
s=2,526
What is another way to write 7 × 104 ?
7 x 10,000
If one box contains 7 pencils, how many pencils are there in 138 boxes?
966 pencils
Draw an area model (partial products) to multiply:
42 x 36
1,512
What is the value of 143×26?
3,718
Liam buys pencils for his classroom that come in packs of 150 pencils.
If he buys 12 packs, how many pencils will he have in all?
p=150×12
p=1,800
True or False?
76×45=3,420
True
A baker bakes 325 cookies each day. How many cookies will the baker make in 8 days?
2,600 cookies
Is this multiplication equation true?
59 x 24 = 1,426?
False.
It's 1,416.
11,040
A concert hall has 475 seats. How many tickets are available for 27 shows?
12,825 tickets
A popular brand of headphones sells for $25 each. The table below shows the number of headphones sold by an electronics store over four days.
Wednesday: 80
Thursday: 95
Friday: 70
Saturday: 110
What was the dollar amount of sales of the headphones on Wednesday? Write an equation to model your work.
25 × 80 = s
s = 2,000
Multiply: 7,133× 4
28,532
Ms. Johnson ordered 12 crates of pencils. Each crate contains 20 packs. Each pack holds 36 pencils.
How many total pencils did Ms. Johnson order?
8,640 pencils
Mrs. Taylor drives 642 miles round trip to visit her daughter.
What is the total distance in miles she would drive for 23 visits to her daughter’s house?
Below is her work to find the total distance.
What is the missing number?
8
Mr. Chen's class set a goal to collect 1,200 cans for a recycling project. So far, 22 students have each brought in 35 cans.
How many more cans does the class need to reach their goal?
Mr. Chen's class still needs 430 cans to reach their goal.
A school ordered 243 cartons of science books. Each carton holds 52 books. How many science books are there in total?
Sarah estimated 243 to 240 and 52 to 50.
She got an answer of 12,000. Would this be an overestimate or underestimate? Why?
The estimate is an underestimate because Sarah rounded 243 down to 240 and 52 down to 50, making both numbers smaller than the actual values.