Multiples and Factors
Write the first five multiples of 5:
5, 10, 15, 20, 25
23 x 6 =
138
96 divided by 2.
48
540
Write the first 10 multiples of 8:
8, 16, 24, 32, 40, 48, 56, 64, 72, 80
568 x 2=
1,136
546 divided by 3.
182
A bakery makes 322 cakes a day. How many cakes do they make in a week?
2,254 cakes!
1, 2, 3, 4, 6, 12
2,145 x 3=
6,435
636 divided by 4
159
Mitsumi wants to string lights for her party. She has bough 4 strings of light, each with 643 light bulbs. How many light bulbs are there altogether?
3,858 lights!
What are the FACTORS of 30?
1, 2, 3, 5, 6, 10, 15, 30
20 x 50=
1,000
736 divided by 5.
147 Remainder 1
There are 543 pieces of paper. Ian wants to put them in 3 piles. If there is an even number in each, how many pieces will be in each pile?
181
Explain what a PRIME number is. Give an example.
Explain what a COMPOSITE is. Give an example.
Prime numbers have only TWO factors: 1 and the number.
Examples: 2, 3, 5, 7, 11, 17, 23
Composite numbers have MULTIPLE factors.
Examples: 4, 6, 8, 10, 12
34 x 56=
1,904
1,879 divided by 6
312 Remainder 1
The New Victory theater has 53 rows of 36 seats each. They book 6 school groups to come visit the theater. How many students can there be in each school group?
There can be 318 students in each school group.