Vocabulary
a combination of numbers, variables, and operation symbols that represents a mathematical quantity
a) expression
b) equation
c) variable
expression
A music store had a sale. On the first day of the sale, the store sold 23 CDs. On the second day, it sold 30 CDs, and on the third day it sold 37 CDs. If this pattern continues, how many CDs will the store sell on the fifth day of the sale?
Hint: Find the rule!
44 CDs
What is r in the problem below?
20 ÷ r = 5
r=4
If d=11, what is (d+4)-7?
8
What number comes next in the pattern?
18, 21, 24, 27, 30, _______
33
to find the answer to a problem
a)variable
b) parentheses
c) solve
solve
Shauna earned $15 babysitting. How much more money does she need to earn to buy a book that costs $22?
$7
What is n in the problem below?
10n = 40
Hint: Remember when a variable is right alongside a number, it means to MULTIPLY
n = 4
If g=12, what does 15+g equal?
27
What number comes next in the pattern?
1, 3, 6, 9, ______
27
a mathematical sentence that contains an equal sign, indicating that the left side of the equal sign has the same value as the right side
a) expression
b) equation
c) variable
equation
Jill draws 2 pictures each day. How many days will it take her to draw 10 pictures?
5 days
62 + m = 124
What does m equal?
m = 62
If b=2, what does (10-b) x 8 equal?
64
Input Output
11 15
15 19
17 ____
23 ____
21, 27
a sequence of numbers, figures, or symbols that follows a rule or design
a) pattern
b) solve
c) parentheses
pattern
Max plays catch with is dog on the weekends. He plays catch for 10 minutes on Saturdays and for 20 minutes on Sunday. If he plays catch with his dog for three weekends, how many total minutes has he played with his dog?
90 minutes
A number plus 15 equals 23. What is the number?
8
Find the value of 13-(x+3) when x=8.
2
What number comes next in the pattern?
4, 7, 10, 13, 16, ______
19
a letter or symbol used to represent an unknown quantity
a) parenthesis
b) variable
c) expression
variable
Martin grilled 28 hamburgers during his first hour of work. By the end of the second hour, he had grilled a total of 62 hamburgers. How many hamburgers did he grill during the second hour?
34 hamburgers
18 divided by a number equals 3. What is the number?
6
What is the value of 5+n if n=2?
7
Write an equation for the following:
Input (x) Output (y)
10 5
8 4
4 2
x ÷ 2 = y