Topic 9 Assessment Practice

Match each expression on the left to an equivalent expression.

• 2/12 + 3/12 + 10/12

• 4/12 + 5/12

• 8/12 + 1/12

• 11/12 + 4/12

• 5/12 - 2/12

• 2/12 + 3/12 + 6/12

• 13/12 - 2/12

• 1/12 + 1/12 + 1/12

On Friday, 2 of the students in class 5 were absent. What fraction of the students were NOT absent? Explain.

• 3/5

• 2/5

• 1/5

• 4/5

Cole spent some time working on his history homework. Then, he spent 3/8 hour working on his Spanish homework. Cole spent 1 hour on homework. What fraction of an hour did Cole spend on history? Explain.

• 2/8 hour; because 3/8 - 1/8 = 2/8

• 2/8 hour because he spent the same amount of time on Spanish as he did History.

• 5/8 hour; because 8/8 - 3/8 = 5/8

• 8/8 hour; because he spent an hour on homework

Select the three expressions that show a way to decompose 5/10.

• 3/10 + 2/10

• 1/10 + 1/10 + 3/10

• 3/4 + 2/6

• 4/10 + 1/10 + 1/10

• 1/10 + 1/10 + 1/10 + 1/10 + 1/10

Which equation is NOT true when 4/10 is the missing number?

• 3/10 + □ = 7/10

• 14/10 - □ = 1

• 1/10 + □ = 7/10

• 5/10 - □ = 1/10

6. Claire had 5 1/4 feet of string. She used some string to hang party decorations. Now she has 2 3/4 feet of string left. How much string did Claire use?

• 2 1/2 feet

• 2 1/4 feet

• 3 feet

• 2 feet

7. Tammi and Orlando each decomposed 1 1/2. Tammi wrote: 1/2 + 1/2 + 1/2. Orlando wrote: 2/2 + 1/2. Who was correct?

• Tammi was correct

• Orlando was correct

• Both were correct

• Neither was correct

Jean and Ricky used fraction strips to add. What is the sum of 2 5/6 + 1 2/6? Select the three that apply.

• 2 5/6 + 1 2/6 = 4 1/6

• 5/6 + 2/6 = 7/6

• 2 5/6 + 1 2/6 = 3 7/6

• 2 5/6 + 1 2/6 = 3 1/6

10. Grandma Meyer uses the recipe to make a soup. Ingredient: Chicken broth 3 1/3 cups, Water 1 3/4 cups, Cream 1 1/4 cups, Vegetable stock 3 1/4 cups. How much vegetable stock and cream are needed?

• 4 3/4 cups

• 4 1/2 cups

• 4 3/4 cups

• 5 1/4 cups

If a recipe requires 3 3/4 cups of flour and you only have 2 1/4 cups, how much more flour do you need?

• 1 2/4 cups

• 1/2 cup

• 1 1/4 cups

• 1 cup