Factors and Prime Numbers
Multiples
X One Digit
2 Digits X 2 Digits
Story Problems
100
The factors of 12
What are numbers 1,2,3,4,6,12 ?
100
This is a multiple of both 3 and 4.
What is 12?
100
19 x 8 ___
What is 152?
100
12 x10 ____
What is 120?
100
Sara earns $12.50 an hour cleaning houses. If she works from 8:00am to 5:00pm, how much money will she make ?
What is $112.50?
200
List the factors of 25
What are 1,5,25?
200
647 x 7 ____
What is 4529?
200
48 x21 ____
What is 1008
200
Mrs. Costarella's garden has 6 rows of corn. Two rows are for the squirrels. Each row has 30 plants in a row. How many corn plants are in Mrs. Costarella's garden?
What is 180 corn plants.
300
Tell what a prime number is.
What is any number that has factors of one and itself.
300
The first five multiples of 7.
What is 7,14,21,28,35?
300
1245 x 3 ______
What is What is 3735?
300
93 x27 ____
What is 1021
300
Anthony saved $60 to buy Skylanders. The cost of each Skylander with tax is $7.00. How many can he buy?
What is 8 Skylanders?
400
Three prime numbers between 2 and 25
What is 2,3,5,7,11,13,17,19,23?
400
5,10,15,20,25,30...
What is multiples of 5?
400
33994 x 6 _______
What is 203964
400
98 x89 ____
What is 8772?
400
Pencils are sold in boxes of 100 and bags of 20. If Samantha bought 2 boxes and eight bags. What is the total number of pencils that she bought?
What is 360?
500
A prime number between 20 and 30.
What is 23,29?
500
6,12,18,24,30,36,42...
What are multiples of 6.
500
1111111111 x 9 ____________
What is 9999999999 ?
500
12 x21 ____
What is 252?
500
Envelopes come in small boxes of 32, medium boxes of 24, and large boxes of 18. Helen bought 2 small boxes, three medium boxes and 1large box. How many envelopes did she buy?
What is 154 envelopes?