7 x 84 = ?
You MUST also show a correct area model.
What is 588.
There are 12 cupcakes in a tray. if there are 30 trays, how many cupcakes are there?
What is 360 cupcakes.
7 x 8 = 56
70 x 8 = 560
700 x 8 = 5,600
70 x 80 = 5,600
If you choose FALSE, which one(s) are false?
What is TRUE.
The product of 32 x 63 is closest to...
1,000
1,500
2,000
2,500
What is 2,000. An estimated product for 32 x 63 is 1,800 (30 x 60).
30 x 60 =
30 x 60 = (3 x 10) x (6 x 10)
(3 x 6) x (10 x 10)
18 x 100
1,800
3 x 947 = ?
You MUST also show a correct area model.
What is 2,841.
A concert costs $58 per person. A group of 9 people go to the concert. What is the cost for the group? Solve AND explain how you got your answer.
What is $522.
(Possible Explanation) Each ticket costs $58 and if 9 people are going to the show, then I need nine groups of $58.
5 x 8 = 40
50 x 8 = 400
500 x 8 = 400
50 x 80 = 4,000
If you choose FALSE, which one(s) are false?
What is FALSE. 500 x 8 = 4,000.
Estimate FIRST, then solve.
36 x 84 = ?
What is possible estimate: 3,200, Actual answer: 3,024.
20 x 40 =
What is
20 x 40 = (2 x 10) x (4 x 10)
(2 x 4) x (10 x 10)
8 x 100
800
6 x 2,593 ?
You MUST also show a correct area model.
What is 15,558.
What is 1,077 hours of practice.
4 x 9 = 36
40 x 9 = 360
400 x 9 = 3,600
40 x 90 = 36,000
If you choose FALSE, which one(s) are false?
What is FALSE. 40 x 90 = 3,600.
Estimate 18 x 34 by rounding each number to the nearest ten.
What is 600.
4 x 55 =
What is
4 x 55 = 4 x (50 + 5)
(4 x 50) + (4 x 5)
200 + 20
220
74 x 68 = ?
You MUST also show a correct area model.
What is 5,032.
John is making a scrapbook. He buys 40 blank sheets of paper. He puts 9 pictures on each of 14 pages and 6 pictures on each of 12 pages. He has 23 pictures leftover. How many pictures are on the pages?
What is 198 pictures are on the pages.
Tell if EACH statement is TRUE or FALSE
76 x 9 is greater than 70 x 9
An estimate of 76 x 9 is 7,200
76 x 9 is less than 720
76 x 9 = (7 x 9) + (6 x 9)
What is
TRUE
FALSE
TRUE
FALSE
The best estimate for 75 x 30 is greater than ___ but less than ______ . (find an over and an under estimate)
a. greater than 2,100 and less than 2,400
b. greater than 2,000 and less than 2,500
c. greater than 2,100 and less than 2,300
What is a. greater than 2,100 and less than 2,400.
6 x 74 =
What is
6 x 74 = 6 x (70 + 4)
(6 x 70) + (6 x 4)
420 + 24
444
23 x 47 = ?
You MUST also show a correct area model.
What is 1,081.
Sophia bought 13 bags of large cotton balls with 14 in each bag. She bought 16 bags of small cotton balls with 30 cotton balls in each bag. How many more small cotton balls are there than large cotton balls? Show your work.
What is 298 more small cotton balls than large cotton balls.
Select the expressions that are equivalent to 34 x 68
a. 30 x (60 + 8) + 4 x (60 + 8)
b. 30 x 4 + 60 x 8
c. (30 x 60) + (30 x 8) + (4 x 60) + (4 x 8)
d. 32 + 24 + 12 + 16
e. (3 tens x 6 tens) + (3 tens x 8) + (4 x 6 tens) + (4 x 8)
The best estimate for 65 x 50 is greater than ___ but less than ______ . (find an over and an under estimate)
a. greater than 3,100 and less than 3,500
b. greater than 3,000 and less than 3,500
c. greater than 3,200 and less than 3,500
What is 2. greater than 3,000 and less than 3,500.
40 x 60 =
What is
40 x 60 = (4 x 10) x (6 x 10)
(4 x 6) x (10 x 10)
24 x 100
2,400