Comparisons
Write an equation that means:
20 is 4 times as many as 5.
4 x 5 = 20
Write the rule:
2, 4, 6, 8, 10
Add 2.
What is the 10th symbol in the pattern?
*, #, *, #
#
Yasarie has a total of 100 stuffed animals. 32 of them are dogs, 15 of them are cats, and 20 of them are fish. The rest are horses. How many horses does she have?
First we add: 32+15+20= 67
Then we subtract: 100-67= 33
Yasarie has 33 horse stuffed animals.
Factor Pair
20
/ \
1 20
Write an equation that means:
3 times as many as 5 is 15
3 x 5 = 15
Write the rule:
13, 20, 27, 34
Add 7
What is the 18th symbol in the pattern?
$, #, *, $, #, *
*
Adelina walks a total of 20 miles a week. On Monday she walks 3 miles, on Tuesday she walks 4 miles, Wednesday she walks 2 miles, and on Thursday she walks 6 miles. How many miles does she walk on Friday?
First we add: 3+4+2+6=15
Then we subtract 20 from 15: 20-15=5
Adelina walked 5 miles on Friday.
Composite Number
a number that has more than one pair of factors.
Example: 20. (1, 2, 4, 5, 10, 20)
Write an equation that means:
30 is 6 times as many as 5
6 x 5 = 30
Write the rule:
1, 5, 25, 125
Multiply by 5
Start at 8, use the rule add 12. Write the first 3 numbers in the pattern.
8, 20, 32
A group of 20 students go on a canoe trip. 3 teachers and 2 parents also go on the trip. If each canoe holds 5 people, how many canoes do they need?
First we add: 20 + 5 = 25
Then we divide: 25 ÷ 5 = 5
The group will need 5 canoes.
Prime Number
A number that only has one and itself as a factor.
Example: 3 (1, 3)
Write a statement that means...
2 x 5 = 10
10 is 2 times as many as 5.
Continue the pattern:
7, 14, 21, ___, ___.
28, 35.
Start at 7, use the rule add 3. Write the first 5 numbers in the pattern.
7, 10, 13, 16, 19.
Sal rides his bike 24 miles on Sunday. That is 3 times as many miles as he rode his bike on Saturday. What is the total number of miles Sal has ridden his bike on Saturday and Sunday?
First we divide 24 by 3 to get how many miles Sal rode on Saturday. 24 ÷ 3 = 8.
Then we add 24 + 8 = 32
Sal rode his bike 34 miles on Saturday and Sunday.
Multiple
The product of a given number and any other whole number.
Write a statement that means...
6 x 10 = 60
60 is 6 times as many as 10.
Continue the pattern:
20, 24, 28, ___, ___.
32, 36.
What do all the numbers below have in common?
6, 12, 18, 24, 30.
They all have 6 as a factor.
They are all multiples of 6.
Rule is add 6.
Sharon and Dani make invitations for a party. Sharon makes 27 invitations. That is 3 times as many as Dani makes. Write and solve an equation to find the number of invitations Dani makes.
27 ÷ 3 = 9
Pattern
Repeating numbers, shapes or colors. Can also have a set of numbers related to each other by a specific rule.