Subtraction
Properties
#Improper Fractions
Trivia
Final Jeopardy
100
1.Match each expression on the left to anequivalent expression.
See Manual
100
4. Select all the expressions that show a way to decompose 7/8.
A. 3/8 + 3/8
B. 1/8 + 1/8 + 5/8
C. 3/4 + 4/4
D. 1/8 + 3/8 + 3/8
E. 1/8 + 2/8 + 3/8 +1/8
B, D, E
100
16. Which mixed number matches an equivalent improper fraction?
Mixed #s: 3 2/7, 4 5/8, 2 3/5, 2 3/8
Fractions: 21/8, 37/3, 21/7, 37/8
4 5/8 and 37/8
100
How many shapes are used in the game Tetris? Hint: It's the same number of shapes in a Tangram.
7
200
3. Riley planted flowers in some of her garden. Then, she planted vegetables in 2/8 of her garden. Now, 7/8 of Riley’s garden is planted. What fraction of Riley’s garden is planted with flowers? How much of her garden is not planted?
𝖠. 2/8 of her garden; 1/8 of her garden is not planted
𝖡. 3/8 of her garden; 2/8 of her garden is not planted
𝖢. 4/8 of her garden; 5/8 of her garden is not planted
𝖣. 5/8 of her garden; 1/8 of her garden is not planted
D
200
Russ has two jars of glue. One jar is 1/5 full. The other jar is 2/5 full. Write an equation to find the amount of glue Russ has.
1/5 + 2/5 = 3/5
200
17. Each day, Tally's baby sister eats 1/4 cup of rice cereal in the morning and 1/4 cup in the afternoon. How many days will it take Tally's sister to eat 2 cups of cereal?
4 days
200
What always goes up, but never down?
Your age.
300
11. Gina has 5 2/6 feet of silver ribbon and 2 4/6 of gold ribbon. How much more silver than gold ribbon does she have?
2 4/6 or 2 2/3
300
18. Three girls are selling cases of popcorn to earn money for a band trip. In week 1, Emily sold 2 3/4 cases, Brenda sold 4 1/4 cases, and Shannon sold 3 1/2 cases.
Part A: How many cases of popcorn have the girls sold in all?
Part B: The girls must sell a total of 35 cases in order to have enough money for a trip. Suppose they sell the same amount in week 2 and week 3 of the sale as in week 1. Will the girls have sold enough cases of popcorn to go on the trip? Explain.
Part A: 10 1/2 cases
Part B: No. 10 1/2 + 10 1/2 + 10 1/2 = 31 1/2. It is not enough.
300
8. In a survey, 6/10 of the students chose Saturday and 1/10 chose Monday as their favorite day of the week.
Part A: What fraction shows the students who chose Saturday or Monday as their favorite day?
Part B: How are the numerator and denominator of your answer related to the model? Explain.
Part A: 7/10
Part B: The numerator shows the number of parts shaded. The denominator shows the size of the parts.
300
What must be broken before you use it?
An egg.
400
19. Henry ate 3/8 of a sandwich. Keith ate 4/8 of the same sandwich. How much more of the sandwich did Keith eat than Henry?
How much did they eat altogether?
1/8; 7/8
400
3. Tricia had 4 1/8 yards of fabric to make curtains. When she finished she had 2 3/8 yards of fabric left. She said she used 2 2/8 yards of fabric for the curtains. Do you agree? Explain.
No. She used 1 3/4 yard fabric.
400
5. Rita is making chili. The recipe calls for 2 3/4 cups of tomatoes. How many cups of tomatoes does she use written as a fraction greater than 1?
11/4
400
I have no legs. I will never walk but always run. What am I?
A river.
500
10. Tell whether the sum or difference is correct.
A. 2/8 + 1/8 = 3/8
B. 4/5 + 1/5 = 5/5
C. 4/6 + 1/6 = 5/12
D. 6/12 - 4/12 = 2/12
E. 7/9 - 2/9 = 9/9
A.Yes
B. Yes
C. No
D. Yes
E. No
500
4. Miguel's class went to the state fair. The fairground is divided into sections. Rides are in 6/10 of the fairground. Games are in 2/10 of the fairground. Farm exhibits are in 1/10 of the fairground.
Part A: Use the model (book). What fraction of the fairground is rides and games?
Part B: How much greater is the area with rides than with farm stuff? How could you model the answer? (book)
Part A: 8/10 or 4/5
Part B: 5/10 or 1/2: Shade 6 sections. Then cross out one section.
500
12. Jill is making a cape. She needs 4 1/3 yards of blue fabric for the outside. She needs 3 2/3 yards of purple for the inside.
Part A: Jill incorrectly subtracted the two mixed numbers to find how much more blue than purple fabric she should buy. Her work is shown below.
4 1/3 - 3 2/3 = 12/3 - 9/3 = 3/3
What was her error?
Part B: How much more blue fabric than purple should she buy?
Part A: She converted them into improper fractions/fractions greater than 1 incorrectly.
Part B: 2/3
500
What is orange in color, green on top, and sounds like a parrot?
A carrot!
500
15. Teresa planted marigolds in 2/8 of her garden and petunias in 3/8 of her garden. What fraction of the garden has marigolds and petunias?
Extra (Required for500 points) Name two equivalent fractions for the answer.
5/8
Extra: Possible--10/16, 15/24