Assignment 1b: Representing Addition and Subtraction Word Problems

Submission Instructions: Write your answers to the problems on paper and then scan or take photos of those pages. If there are multiple pages to your completed assignment, you must submit them as one multi-page document (pdf, docx, jpg, or png).

Directions: Complete each of the following. Label the strip diagram using words (e.g., pears) and numbers (e.g., 49) so that anyone can easily interpret your diagram. Put a question mark in the strip diagram to indicate the unknown quantity.

1. Maria picked 15 apples and 22 pears. How many more pears than apples did she pick?
1. Draw a strip diagram to represent the relationship between the quantities.
2. How many more pears than apples did Maria pick?
2. The San Diego Zoo has 8 more gorillas than the Bronx Zoo. The San Diego Zoo has 14 gorillas. How many gorillas does the Bronx Zoo have?
1. Draw a strip diagram to represent the relationship between the quantities.
2. How many gorillas does the Bronx Zoo have?
3. Tomika baked some cookies. After donating 36 of them to a bake sale, she still had 10 cookies. How many cookies did she bake?
1. Draw a strip diagram to represent the relationship between the quantities.
2. How many cookies did Tomika bake?
4. There were only 40 cans of soup on the grocery shelf. Maria restocked the soup, bringing the total up to 200 cans. How many cans did Maria add to the shelf?
1. Draw a strip diagram to represent the relationship between the quantities.
2. How many cans did Maria add to the shelf?
5. A party room was decorated with 34 balloons. How many were left after 11 of them broke?
1. Draw a strip diagram to represent the relationship between the quantities.
2. How many balloons remained?

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