Quick Check
Name
3-2
Use mental math to find each product.
1. Kristin has 30 boxes. Each box
has 800 greeting cards. How many
greeting cards are in the boxes?
2. 3,000 3 103
A 30,000,000
B 3,000,000
A 24
C 30,000
B 240
D 3,000
C 2,400
D 24,000
3. Which is a possible solution for
3
3
5 16,000?
A 80 3 20 3 1
B 800 3 200 3 0
C 800 3 2 3 1
D 80 3 20 3 10
4. W
riting to Explain A book publisher is shipping a new book
in boxes of 200. If 30 boxes fit in 1 shipping crate, how many
books are in 20 shipping crates? Explain the mental math
you used to solve the problem.
Q 3•2
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