Section D: Practice Problems All Kinds of Story Problems
We learned about equations where a number is missing and related them to story problems.
Lin has 5 bingo chips on her board. She also has some chips on the table. All together she has 9 bingo chips. How many chips does Lin have on the table?
We thought about how addition and subtraction are related by solving story problems using both addition and subtraction.
9 students are playing bingo. 3 students are using blue chips to cover their boards. The other students are using yellow chips. How many students are using yellow chips?
We wrote our own story problems to match equations.
Try writing a story to match these equations.
Problem 1 (Lesson 17)
There were 9 cars in the parking lot.
Then 5 of the cars drove away.
How many cars are in the parking lot now?
Show your thinking using drawings, numbers, or words.
Write an equation and draw a box around the answer.
Problem 2 (Lesson 18)
There were 7 apples in the basket.
Tyler added some more apples to the basket.
Now there are 9 apples in the basket.
How many apples did Tyler add to the basket?
Select 2 equations that match the story.
Problem 3 (Lesson 19)
There were 9 chickens in the yard.
Some of the chickens ran away.
Now there are 5 chickens in the yard.
How many chickens ran away?
Write 2 equations that match the story problem.
Problem 4 (Lesson 20)
Write a story problem with an answer of 7.
Problem 5 (Exploration)
There are 9 books on Han’s desk and 5 books on Mai’s desk. Then Han puts 2 of his books on Mai’s desk.
The answer to the question is 7.
What is the question?
Problem 6 (Exploration)
Write and solve your own story problem about something at your home.
Share your story with a partner and solve your partner’s problem.