Rowan University Math Quantities Questions

Assignment 2a: Multi-Step 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., stuffed animals), numbers (e.g., 35), and brackets so that anyone can easily interpret your diagram. Put a question mark in the strip diagram to indicate the unknown quantity.

1. Debbie has three kinds of stuffed animals in her collection: elephants, giraffes, and bears. She has 3 fewer elephants than giraffes, and she has 2 more bears than giraffes. She has a total of 20 stuffed animals. How many giraffes does Debbie have?
   1. Draw a strip diagram to represent the relationships between the quantities.
   2. How many giraffes does Debbie have?
2. Together, Jamal and Raymond earned $310. Raymond earned $60 less than Jamal. How much did Jamal earn?
   1. Draw a strip diagram to represent the relationships between the quantities.
   2. How much did Jamal earn?
3. Two angles are supplementary. (The sum of two supplementary angles is 180 degrees.) One angle is 50 degrees less than the other angle. What is the measure of the smaller angle?
   1. Draw a strip diagram to represent the relationships between the quantities.
   2. What is the measure of the smaller angle?
4. There are the same number of students in a first-grade class and a second-grade class. The first-grade class has 13 boys and 10 girls. The second-grade class has 8 boys. How many girls are in the second-grade class?
   1. Draw a strip diagram to represent the relationships between the quantities.
   2. How many girls are in the second-grade class?
5. A piggy bank contains nickels, dimes, and quarters. There are 10 fewer quarters than dimes and 3 more nickels than quarters. There are 30 dimes. How much money is in the bank?
6. Draw a strip diagram to represent the relationships between the quantities.
7. What is the total value of the money in the piggy bank?