Equations1
What is the inverse operation of addition?
Subtraction
What is the inverse operation of division?
multiplication
What is the proportion you can use to solve percent problems?
%/100 = is/of
add and subtract
What is the symbol < ?
less than
Solve the equation
x + 13 = 42
x = 29
Solve the equation
4x = 48
x = 12
Solve the proportion
9/x = 18/22
x = 11
what is 10 - 4 1/2?
5 1/2 or 11/2
What operation is happening in the expression 5x?
5 times x, or multiplication
Solve the equation
y - 15 = 32
y = 47
Solve the equation
x/5 = 10
x = 50
Solve the proportion
x/15 = 6/18
x = 5
What is 1/3 times 18?
6
List the Order of Operations (not just the abbreviation)
Parentheses, Exponents, Multiply/Divide, Add/Subtract
Solve the equation
p + 15 = 3
p = -12
Solve the equation
6y = -36
y = -6
A photo is 5 inches long by 7 inches wide. If Meg makes it into a poster that is 12.5 feet long, how wide should it be?
17.5 ft
What is 5/12 + 1/8?
13/24
What is the GCF of 90 and 78?
Solve the equation
t - 18 = -10
t = 8
Solve the equation
n/-2 = -20
n = 40
A tree that is 8 feet tall casts a shadow that is 24 feet long. At the same time, a nearby building casts a shadow that is 60 feet long. How tall is the building?
20 feet tall
What is 10/21 ÷ 4?
5/42
Evaluate
19 - 10 + 2 • (3 - 1)
13