Unit 7: Everyday Math 4

Solve this problem.

• 20 3/8

• 25

• 160/8

• 21 7/8

Explain the strategy you used to find the solution.

• Multiply the whole numbers and add 3/8 for the solution.

• Rename 5 as an improper fraction and multiply straight.

• Multiply both whole numbers together; then multiply the fraction by the whole number 5. Add both products to find the solution.

Solve this problem.

• 6 3/15

• 6 1/3

• 130/10

• 8 2/3

What strategies might you use to solve this problem?

• I can multiply the whole numbers by each other and then multiply the fractions by each other to get the product.

• Rename both mixed numbers to improper fractions, multiply numerator by numerator/denominator by denominator, and simplify.

• Multiply the first whole number by the second whole number and second fraction. Multiply the first fraction by the second whole number and second fraction. Add these 4 partial products together for a final solution.

• Multiply the whole numbers, get a common denominator, and then multiply everything to get a final product.

Which number story matches the problem?

• Mary bought 3 1/3 yards of yellow fabric. She needed to use 2 3/5 fabric for a table cloth. How much fabric does Mary have left?

• John worked 2 3/5 hours on Monday and 3 1/3 hours on Tuesday. If he has to work a total of 7 hours on those days to get paid, does John get paid for his work?

• Tyson is building a dog house. He has enough lumber to make the house's length 3 1/3 feet long and 2 3/5 feet wide. What will be the surface area of the dog house?

• Ronda has 3 birthday cakes. If she cuts each one into 2 3/5 equal pieces, how many pieces does she have for her party?

These are the dimensions of Halyn's new phone. What is the area of the new phone case Halyn has to buy?

• 12 7/32 inches²

• 15 15/32 inches²

• 400/32 inches²

• 15 4/32 inches²

Solve this problem.

• 1/15

• 15

• 5/15

• 1/3

Solve this problem.

• 30

• 6/30

• 1/30

• 4

This shape may be called:

• square

• polygon

• triangle

• rectangle

• parallelogram

A rectangle is not always considered a square because:

• It does not always have two pair of paralllel sides.

• It does not have four 90-degree angles.

• It is not a quadrilateral, but a square is.

• It does not always have equal sides, like a square does.