Homework 1. Circle the even numbers in the following list of numbers. 15
24 9 48
37 2 39 81 66 73 52 108
2. Cross out the numbers on the following list that are not prime numbers. 23
7 15 42 19 11 27 36 63 70 45
3. List all of the factors of the following numbers. a) 18
b) 24 c) 20
b) 12 and 16 e) 15 and 25
c) 7 d) 33 e) 16
4. Find the common factors of the following pairs of numbers. a) 8 and 12 d) 18 and 27
5. List the fi rst 6 multiples of the following numbers. a) 5
b) 10
6. True or false? a) 235 is a multiple of 5 c) 619 is a multiple of 7 e) 468 is a multiple of 8
d) 4
c) 12 and 18 f) 20 and 30
e) 8
b) 432 is a multiple of 6 d) 567 is a multiple of 9 f) 979 is a multiple of 11
f) 11 121 f) 30
Recap • I can tell the difference between odd and even numbers.
• I know what factors and products are. • I know what prime and composite numbers are. • I can fi nd common factors of numbers. • I know what multiples are.