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Crazy Computations
Madd Multiplication
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100
54-28.02
25.98
100
Give the first 2 multiples of 7
14 and 21
100
Is 42 divisible by 3?
yes
100
3 + 4 / 2
5
100
The 6th grade math book for Holiday Middle School has 1,533 pages in the first part and 1,488 pages in the book's answer section. How many pages does it have?
It has 3021 pages in total.
200
12.92x11.01
142.2492
200
4 and 8 are a factor pair of _____
32
200
Which number is divisible by 2 and 4? 2020 370 4533
2020
200
56 / (7 + 1)
7
200
Rudolph needs to buy some generators. The generators cost $12,000 each and he needs 11 of them. How much will he have pay?
It will cost him $13,200.
300
8027x215
1725805
300
Give the 12th multiple of 9
108
300
Is -3050 divisible by 5?
Yes
300
88 / (24-13) x 12
96
300
If Mr. Grinch is trying to organize his class of 20 students into rows for the class photo and each row is to have an equal number of students. What are ALL of the possible arrangements he may have?
He can have 10 rows of 2, 4 rows of 5 students, 5 rows of 4 students, or one row of 20 students.
400
4144 / 16
259
400
What are the seven factor pairs for 120?
12 and 10; 120 and 1; 3 and 40; 4 and 30; 5 and 24; 6 and 20; 8 and 15
400
Which number is divisible by 6? 3106 124 72144
72144
400
Where should the parentheses be placed to make this number sentence true? 12 x 4 + 2 - 12 = 60
12 x (4 + 2) - 12 = 60
400
There are 294 students waiting to buy lunch from Pumpernick's and there are 3 lines. Could each line have an equal number of students? Why or why not?
Yes, 3 rows of 98 students
500
75383 / 14
5384 remainder 7
500
What is the LCM of 4 and 6?
12
500
Which number is divisible by 5 and 6? 18000 250 375
18000
500
Where should the parentheses be placed to make this number sentence true? 17 - 8 x 2 + 6 x 11 - 5 = 37
17 - 8 x 2 + 6 x (11 - 5) = 37
500
Could 142 students be broken into soccer teams with no one left out if each team needs 6 players? Why or why not?
No; although there is a remainder of 6, the number repeats. 23.666666...