Multiplication
30 x 3 =
90
80 ÷ 4 =
20
Estimate the product:
32 x 5 =
30 x 5 = 150
Estimate the quotient:
96 ÷ 3 =
90 ÷ 3 = 30
Sammy has 5 packs of stickers. Each pack has 60 stickers in it. How many stickers does Sammy have altogether?
Sammy has 300 stickers altogether.
500 x 7 =
3,500
900 ÷ 3 =
300
Estimate the product:
719 x 4 =
700 x 4 = 2,800
Estimate the quotient:
128 ÷ 4 =
120 ÷ 4 = 30
There are 350 chairs at the fair. There are the same number of chairs in each of the 5 rows. How many chairs are in each row?
There are 70 chairs in each row.
400 x 9 =
3,600
400 ÷ 8 =
50
Estimate the product:
572 x 6 =
600 x 6 = 3,600
Estimate the quotient:
348 ÷ 7 =
350 ÷ 7 = 50
A UPS driver delivers 400 packages per week. How many packages does he deliver in 7 weeks?
He delivers 2,800 packages in 7 weeks.
8,000 x 5 =
40,000
2,700 ÷ 9 =
300
Estimate the product:
4,382 x 3 =
4,000 x 3 = 12,000
Estimate the quotient:
5,486 ÷ 7 =
5,600 ÷ 7 = 800
A school orders 2,700 pencils for testing. The pencils are stored in 3 boxes. How many pencils are in each box?
There are 900 pencils in each box.
9,000 x 8 =
72,000
56,000 ÷ 8 =
7,000
Estimate the product:
8,514 x 6 =
9,000 x 6 = 54,000
Estimate the quotient:
28,203 ÷ 9 =
27,000 ÷ 9 = 3,000
A zoo buys 792 treats for the year for the monkeys. There are 3 monkeys. The zoo keeper says each monkey will get 264 treats for the year. Is this reasonable? Explain why or why not?
Yes it is reasonable because each monkey will get about 200 to 300 treats for the year. The zoo keepers answer is close to the estimate.