Math

Tapediagrams.pdf

MA_Ratios_Lesson03_Classwork_mod.doc Intro to Tape Diagrams

Name: ___________________________________ HR: ________ Date: ________________________

Tape Diagrams Practice Class Work Problem #1

The ratio of boys to girls at a party is 2 to 3. If there are 10 boys then how many girls are there? b. Circle the correct tape diagram. Put an “X” through the wrong tape diagrams.

c. Fill in the correct tape diagram and solve the problem.

How many girls are there? ___________ girls

boys

girls

a. What’s wrong with this tape diagram? How can it be fixed?

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Don’t forget this part.

MA_Ratios_Lesson03_Classwork_mod.doc Intro to Tape Diagrams

2. In a zoo there are 9 monkeys. The ratio of monkeys to zebras is 3 to 1. How many zebras are there?

a. Put the numbers into the tape diagram below.

Complete the tape diagrams. Put numbers in the boxes and for the length of each tape. 3. In a basket, there are 24 sweet oranges and the rest are sour oranges. The ratio of sweet oranges to the sour oranges is 4:1. Find the number of sour oranges.

4. The ratio of blue marbles to red marbles in a box is 3 to 2. If there are 12 blue marbles in the box then how many red marbles are there?

Try these: 5. Children at recess are either playing or sitting down resting. The ratio of kids playing to resting is 3:1. If there are 8 children resting, then how many children are playing?

6. A fruit basket is made with apples and oranges. The ratio of apples to oranges in a fruit basket is 2 to 3. If there are 15 oranges in the basket, then how many apples are there?

b. Solve the problem.

Answer: _______ zebras

Answer: ________________________

Answer: ________________________ Answer: ________________________