Another word for the letters used in expressions and equations.
Variable
What is the value for x in Tape Diagram A?
What is the value for x in Tape Diagram B?
No calc.
Solve for x:
2x + 1 = 5
No calc.
x = 2
Lin made goody bags for their 5 friends. Each bag had x amount of dollars. Lin added 3 more dollars to each bag. Lin had a total of 45$.
Write an equation to represent the story.
Solve your equation
5(x + 3) = 40
x=5
This type of math problem has an equal sign.
Equation
Draw a tape diagram and solve:
Wendy went to the store. She bought 3 boxes of cereal each weighing the same. If she spent $12 in total, how much was each box of cereal?
No Calc.
x = 4
Solve for x:
3x - 4 = 11
No calculator
x = 5
The skating rink charges each student $5 to enter plus a fee for skates. Today, $126 was collected for the 9 attendees. Write and solve an equation that represents the story.
9(x+5)= 126
x=9
What type of math uses numbers and symbols to formulate expressions and equations?
Algebra
Draw a tape diagram and solve:
Charlie went on a hike. The total trail was 12 miles. He walked 4 miles then took a break. He then split up the rest of his hike into 2 parts.
x = 4
Solve for x.
2(x + 5) = 30
No Calc.
x = 10
Maya had 72 flyers to hang up around the school. She gave 7 flyers to each of four volunteers. Then she took the remaining flyers and divided them up equally between the four volunteers.
4(x+7) = 72
x=11
The term for when you find what the missing variable equals.
Draw a tape diagram for this situation and solve
Mai is making cakes for her school’s bake sale. She used 17 cups of flour for her first batch of cookies. She then used the same amount of flour to make 4 small pans of brownies. She used 23 cups of flour in total.
x=1.5
Solve for y.
3(y - 2) = 12
No calculator
y = 6
A school ordered 3 large boxes of board markers. After giving 15 markers to each of 3 teachers, there were 90 markers left. The diagram represents the situation. How many markers were originally in each box?

3(x-15)=90
x=45
The number in front of the variable is called ________
Coefficient
Write an equation for the tape diagrams and solve.

x = 22
x = 14
Solve for x.
120 = 10x - 10
No Calc.
x = 13
Ms. Prado gave a quiz in class today. Each student received the same amount of questions. To be petty she gave two students 2 extra questions each. In total she gave out 54 questions amongst 10 students. Write an equation that represents the story.
10x + 4 = 54
x=5