Multiples and factors
Is 15 a prime or composite number?
Composite Number
17 x 23
17 x 23 = 391
What is Ms Olson's dogs name? Spelling does count
Nyla
120 / 6
20
A new school is opening: the floor is 43 meters long and 32 meters wide. How many square meters of flooring do they need?
Area = length x width
A = 43 x 32
They will need 1,376 square meters
Is 24 a prime or composite number?
Composite
59 x 46
2,714
49 / 7
7
3,065 / 5
Use Place Value
613
Check for place value
The school ordered small posters and large posters to promote their opening. 11 times as many small posters were ordered as large posters. If there were 49 large posters, how many small posters were ordered?
49 x 11 = 539 small posters were ordered
What is the greatest multiple of 4 that is less than 25?
24
4,8,12,16,20,24
3 x 149
447
12 x 4
48
678/9
75 R 3
75 pencils come in a box. If 3 teachers share 4 boxes equally, how many does each teacher receive?
75 x 4 = 300
300 / 3 = 100
each teacher gets 100 pencils
Is 3 a factor of 45?
Yes!
45/3 = 15
8 x 2,056
16, 448
Is 2 a prime or composite number
prime number
1,208 / 3
402 R 2
Uniforms are sold in packs of 6. There are 43 kids on the football team. Each player will get 2 uniforms. How many packages will the store need to order?
43 students 2 uniforms each = 86 uniforms total
86 uniforms in packs of 6 = 86/6 = 14 packs of 6 and 2 leftover still needed
In total they will need to order 15 packs of uniforms.
List out the first 10 multiples of 7
0,7,14,21,28,35,42,49,56,63,70
23 x 49
1,127
List the first 6 multiples of 12
0, 12, 24, 36, 48, 60, 72
4,801 / 3
1600 R 1
There are 3 numbers for the combination to a lock. The first number is 19. The other 2 numbers can be multiplied together to get a product of 24. What are all of the other possibilities for the other 2 numbers?
24 x 1
2 x 12
3 x 8
4 x 6
6 x 4
8 x 3
12 x 2
1 x 24