Estimate Products
Estimate the product of 3 x 49
150
What is the missing number?
2 x 308 = 2 x ( ___ + 8)
300
What is the missing partial product?
5 6 3
x 2
_____
6
1 2 0
? ? ? ?
1,000
Ashley and 3 friends are planning a trip. The cost of the trip is $599 per person. How much will the trip cost Ashley and her friends?
2,396
48 x 3
144
Estimate the product of 7 x 623
4,200
What is the missing number?
6 x 312 = 6 x (300 + 10 + 2)
=(6 x 300) + ( ___ x 10) + (6 x 2)
6
What is the missing partial product?
9 x 2,731 =
18,000 + ? + 270 + 9
6,300
There are 84 marbles in a bag. How many marbles are in 5 bags?
420
230x5
1,150
Estimate the product of 8 x 7,348
56,000
What is the missing number?
4 x 832 = 4 x (800 + 30 +2)
= (4 x 800) + (4 x 30) + (4 x ___ )
2
Which is NOT a partial product?
7 x 4,629 =
a. 2,800
b. 4,200
c. 140
d.63
An Gorilla weighs 2,369 pounds. An elephant weighs 4 times as much. How much does an elephant weigh?
9,476
1,023 x 4
4,092
Is the product reasonable? 9 x 6,981 = 62,829 and explain why.
It is reasonable because 9 x 7,000 = 63,000
What is the missing number?
8 x 7, 239 = 8 x (7,000 + 200 + 30 + 9)
= (8 x 7,000) + (8 x 200) + (8 x 30) + (8 x 9)
= ______ + 1,600 + 240 + 81
56,000
List all the partial products for
4 x 1,995
4,000 + 3,600 + 360 + 20
There are 7,247 seeds in each package. There are 6 packages. How many seeds are there in all?
43,482
2,541 x 3
7,623
Is the product reasonable 4 x 3,075 = 21,672 and explain why.
It is not reasonable because 4 x 3,000 = 12,000
What are the missing numbers?
3 x 6,023 = 3 x ( ___ + ____ + ____)
6,000 + 20 + 3
List all the partial products for
8 x 8,734
64,000 + 5,600 + 240 + 32
A restaurant sells 8,631 burgers each month. How many burgers will be sold after 7 months?
60,417
5,746 x 4
22,984