4th Grade Multiplication
57 x 3
171
100 X 7
700
Estimate the following and solve:
27 x 17
30 x 20 = 600
700 x 2=
1,400
What is the answer called in a multiplication problem?
Product
A factor pair of 24 is 1 and 24. What is another factor pair of 24?
6 and 4
or 8 and 3
or 12 and 2
564 X 2
1,128
Estimate and solve:
178 x 43
200 x 40 = 800
30 x 6
180
Estimate the product.
233 x 6 =
1,200
234 x 4
936
George in Georgeville had 352 guests in 2021. They will have 3 times as many guests this year. How many guests will there be this year?
BONUS 200 POINTS
1,056
Estimate and solve:
463 x 8
500 x 5 = 2500
500 x 10 = 5,000
500 x 8 = 4,000
250 x 3 =
750
Multiply: 29 x 78
show your steps
8 x9 = 72
8 x 20 = 160
70 x 9 = 630
70 x 20 = 1,400=
= 2,262
380 x 4
1,520
78 X 9
702
Estimate and solve:
33 x 78
30 x 80 = 2,400
700 x 30
21,000
Sarah has 34 packs of stickers
- there are 8 sheets of stickers in each pack.
- each sheet has 5 stickers.
How many stickers does Sarah have?
34 x (8 x 5)
34 x 40 = 1,360
2,378 x 6
14,268
5000 times 4
20,000
Estimate and solve:
904 x 55
900 x 60 = 54,000
1,000 X 10
10,000
A school sold tickets to the Christmas dance. They sold 75 tickets on the first day and sold 92 on the second day. Each ticket cost $7. How much money did they make selling tickets?
75 + 92 = 162
162 x 7 = $1,134
What is a factor? What is a product?
Factors are the numbers/digits used in a multiplication problem
A product is the answer to a multiplication problem
There were 354 pieces of candy in each of 3 buckets. How many pieces of candy are in each bucket?
1,062 pieces of candy
What are the estimated factors of this product?:
81,000
900 x 90
If you have a 30 minute lunch period and 5 days of school. How many minutes do you have lunch in an entire week?
150 minutes
Mrs. Adame bought 7 drinks and 5 boxes candy at the carnival for her family.
- Each drink costs $ 4
- Each box of candy costs $ 2
Which set of equations can be used to find m, the amount of money in
dollars Mrs. Adame spent?
A. 4 + 7 =11
5 + 2 = 7
11 x 7 = m
B. 7 × 4 = 28
5 x 2 = 10
28 x 10 = m
C. 7 + 5 = 12
4 + 2 = 6
12 × 6 = m
B is the answer.