What is
50x2=100
50x20=1,000
50x200=10,000
50x2,000= 100,00
100
21 x 13
What is
200
100
25 x 78
What is
1,950
100
Mr. Cinelli charges $73 an hour to work on lesson plans for Ms. Hopler. If he earned $365, how many hours did he work on Ms. Hopler's lesson plans?
What is
5 hours
100
2,924 x 53
What is
154,972
200
70x3
70x30
70x300
70x3,000
What is
70x3=210
70x30=2,100
70x300=21,000
70x3,000=210,000
200
38 x 19
What is
800
200
$34
x 24
_____
What is
$816
200
Morgan Multiplies 62 by 99. Her answer is 1,116. Is her answer reasonable?
What is
No. 6,138
Reasonable would be 60X100=6,000
200
40 x $ 241.28
What is
$9,651.20
300
50 x 4,000
What is
200,000
300
301 x 66
What is
21,000
300
98 x 90
What is
8,820
300
Jack makes $7 an hour working for Ms. Hopler. He works 5 hours a day. How much money will Jack earn if he work for the whole year with only 5 days off?
What is
365-5=360
7x5=35
35x 360=12,600
Jack will earn $12,600
300
38 x 41,624
What is
1, 581,712
400
3,000
x 90
_____
What is
270,000
400
292 x 52
What is
15,000
400
68 x 20
What is
1,360
400
Jessie multiplies 89,750 x 79= 7,090,250
is his answer reasonable. Estimate to find out.
What is
90,000
x 80
_______
720,000
400
1,249 X 60
What is
74,940
500
6,735
x 80
_____
Round the factor to the highest place value.
What is
560,000
500
It takes 24 hours for the earth to make one complete turn on its axis. Est. the number of hours it takes the earth to make 17 complete turns.
What is
400
500
What is the greatest product you can make?
2,3,4,5
What is
52x43=2,236
500
The product of Joan's age and her younger brother's age is 36. The sum of their ages is 15. How old are Joan and her brother?
What is
Joan is 12
Her brother is 3 years old
500
Ms. Mendoza charges $85.50 an hour to design the web page for The Tiger Times. She spent 60 hours on the web site. How much did she earn?