Math review!

Keep it in balance!

100

On one tray you have a cup and 3 tokens. This is equal to the tray next to it which has 9 tokens. How many tokens are in the cup? Write the algebraic expression.

3 + n = 9

200

Supposing you take away 3 counters from the left hand mat. What should you do to the left hand mat?

Take away 3 counters.

300

Suppose you have one tray with a cup that has counters in it, and 4 counters next to it. On the tray next to it there are 12 counters on it. Both trays have the same number of counters. How many counters are in the cup?

8 Counters

400

Suppose you have a tray with two cups. Each cup has the same number of counters in them. On the tray next to it are 10 counters. Both trays have the same number of counters. How many counters are in each cup?

5 counters

500

Suppose you have a tray with 3 cups. In each cup is an equal number of counters. On the tray next to it you have 12 counters. Both trays have the same number of counters. How many counters are in each cup?

4 counters

Adding / Subtracting Unknown Values

100

Describe what you would do to solve this equation:

j + 9 = 15

Subtract 9

200

Describe what you would do to solve this equation:

k - 8 = 4

add 8

300

Solve the equation J + 9 = 15

J =

6

400

Solve the equation: K - 8 = 4

K =

12

500

Solve the equation: a + 7 = 12

a = 

5

Multiplying / Dividing Unknown Values

100

Describe what you would do to solve this equation:

5 x C = 20

Divide by 5

200

^{Describe what you would do to solve the equation: d/6=5}

multiply by 6

300

Solve the equation: 8e = 32

e =

4

400

solve the equation f/3 = 9

f = 

27

500

Solve the expression: 9d = 54

6

Write algebraic equations

100

There are 18 wheels from tricycles at the park. Each tricycle has 3 wheels. How many tricycles are at the park?

What is our variable

T

200

For park cleanup day, there are 4 groups of volunteers. There are 6 volunteers in each group. How many volunteers are there altogether?

What Variable would you use?

V

300

Missy used 2 boxes of light blubs. There are 3 boxes of light bulbs left in her closet. How many boxes of light bulbs did Missy have initially?

write the equation.

B - 2 = 3

400

Two cans of tuna fish were taken off a shelf. There are 6 cans of tuna fish left on the shelf. How many cans were on the shelf initially?

Write an expression

c - 2 = 6

500

There are a total of 11 students on a team. Five of the team members are boys. How many girls are on the team?

Write an expression

5 + g = 11