Prime or Composite?
List the factors and then determine if prime or composite.
3
1x3
Prime
70 x 4
280
3,600 ÷ 9
400
96 pencils come in a box. If 4 teachers share 3 boxes equally, how many pencils does each teacher get?
Each teacher gets 72 pencils.
List the next five multiples of 4.
4, 8, 12, 16, 20, 24
List the factors and then determine if prime or composite.
6
1x6, 2x3
composite
532 x 7
3,724
427 ÷ 3
142 R1
A new grocery store is opening next week. The store’s rectangular floor is 42 meters long and 39 meters wide. They want to put in flooring. How much flooring do they need? Use estimation to assess the reasonableness of your answer.
1,638 square meters of flooring.
What is the greatest multiple of 5 less than 32?
30
List the factors and then determine if prime or composite.
15
1x15, 3x5
composite
70 x 84
5,880
5,316 ÷ 3
1,772 R0
The store ordered large and small posters. They ordered 12 times as many small posters as large posters. If there were 48 large posters, how many more small posters were ordered than large posters?
528 more small posters than large posters.
What is the next multiple of 10 after 47?
50
List the factors and then determine if prime or composite.
24
1x24, 2x12, 3x8, 4x6
composite
29 x 56
1,624
3,809 ÷ 5
761 R4
Uniforms are sold in packages of 8. All 127 employees will be given 3 uniforms. How many packages will the store need to order?
48 packages of uniforms.
What is the greatest multiple of 7 that is less than 60?
56
List the factors and then determine if prime or composite.
29
1x29
Prime
17 x 43
731
9,568 ÷ 7
1,366 R6
There are three numbers for the combination to the store’s safe. The first number is 17. The other two numbers can be multiplied together to give a product of 28. What are all the possibilities for the other two numbers? Write your answers as multiplication equations.
The other numbers could be 1, 2, 4, 7, 14, or 28.
What is the greatest multiple of 11 that is less than 100?
99