Key Terms
Which Operations?
INVERSES
After Numbers
Equations
100

Total

100

Sherry's mom gave an equal number of candies to her 5 kids. Sherry already had 21 pieces of candy, but now she has a total of 30 pieces. How many pieces of candy did her mom give out?

What operations are in this problem?

100

What is the INVERSE of addition?

Subtraction

100

Sherry's mom gave an equal number of candies to her 5 kids. Sherry already had 21 pieces of candy, but now she has a total of 30. How many pieces of candy did her mom give out?

What is the "AFTER" number?

30

100

Sherry's mom gave an equal number of candies to her 5 kids. Sherry already had 21 pieces of candy, but now she has a total of 30. How many pieces of candy did her mom give out?

Write an equation to represent this word problem.

c/5 + 21 = 30

200

Each

MULTIPLY

200

Pete is having a party, so he bought some chips. Each bag of chips cost 4 dollars, and Pete also spent 15 dollars on soda. If Pete spent exactly 35 dollars, how many bags of chips did he buy?

What operations are in this problem?

200

What is the INVERSE of subtraction?

200

Pete is having a party, so he bought some chips. Each bag of chips cost 4 dollars, and Pete also spent 15 dollars on soda. If Pete spent exactly 35 dollars, how many bags of chips did he buy?

What is the "AFTER" number?

35

200

Pete is having a party, so he bought some chips. Each bag of chips cost 4 dollars, and Pete also spent 15 dollars on soda. If Pete spent exactly 35 dollars, how many bags of chips did he buy?

Write an equation to represent this word problem.

4c + 15 = 35

300

Left (over)

SUBTRACT

300

Max made brownies. He and his friend split them evenly between the 2 of them. Max then ate 4 of his brownies, and had 8 left. How many brownies did Max make?

What operations are in this problem?

DIVISION and SUBTRACTION

300

What is the INVERSE of multiplication?

Division

300

Max made brownies. He and his friend split them evenly between the 2 of them. Max then ate 4 of his brownies, and had 8 left. How many brownies did Max make?

What is the "AFTER" number?

8

300

Max made brownies. He and his friend split them evenly between the 2 of them. Max then ate 4 of his brownies, and had 8 left. How many brownies did Max make?

Write an equation to represent this word problem.

b/2 - 4 = 8

400

Equal

DIVIDE

400

Ramon watches his favorite show every night. Each episode is 11 minutes long. Last night, he also watched a movie that was 80 minutes long. If Ramon watched TV for 124 minutes, how many episodes of his favorite show did he watch?

What operations are in this problem?

400

What is the INVERSE of division?

Multiplication

400

Ramon watches his favorite show every night. Each episode is 11 minutes long. Last night, he also watched a movie that was 80 minutes long. If Ramon watched TV for 124 minutes, how many episodes of his favorite show did he watch?

What is the "AFTER" number?

124

400

Ramon watches his favorite show every night. Each episode is 11 minutes long. Last night, he also watched a movie that was 80 minutes long. If Ramon watched TV for 124 minutes, how many episodes of his favorite show did he watch?

Write an equation to represent this word problem.

11e + 80 = 124

500

How many more

SUBTRACT

500

Jamie types at a rate of 50 words per minute. When she started typing, she had already typed 100 words. By the time she was finished, she had a total of 550 words. How many minutes did she spend typing?

500

What are the TWO PAIRS of inverse operations?

500

Jamie types at a rate of 50 words per minute. When she started typing, she had already typed 100 words. By the time she was finished, she had a total of 550 words. How many minutes did she spend typing?

What is the "AFTER" number?

550

500

Jamie types at a rate of 50 words per minute. When she started typing, she had already typed 100 words. By the time she was finished, she had a total of 550 words. How many minutes did she spend typing?

Write an equation to represent this word problem.

50m + 100 = 550

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