Topic 1: Use Positive Rational Numbers

1. In an election, candidate A received 0.443 of the vote, and candidate B received 0.531 of the vote. How much greater was candidate B’s part of the total vote?

Mathematical Equivalence

ON

1. Find 8.1 + 2.53.

Mathematical Equivalence

ON

1. An office supply company ordered 24 cartons of specialty paper. The regular price for a carton of specialty paper is $6.88. The company received a discount of $1.75 off each carton. Which expression gives a reasonable estimate for how much money the company will pay for the paper?

• 0. $5 × 25

• 0. $6 × 25

• 0. $7 × 20

• 0. $9 × 30

1. Divide 2262/87.

Mathematical Equivalence

OFF

1. Which of the following gives the quotient for 9,315 / 22 and shows how to check the quotient by multiplying?

• • 423 R9 because (423 × 22) + 9 = 9,315

• • 423 R9 because (423 × 9) + 22 = 9,315

• • 424 R13 because (424 × 22) + 13 = 9,315

• • 424 R13 because (424 × 13) + 22 = 9,315

1. Lynn paid $12.21 for ribbon. The cost per yard was $1.48.

   How many yards of ribbon did Lynn buy?

• 0. 10.05 yards

• 9.25 yards

• 8.45 yards

• 8.25 yards

1. Select all the expressions that have 2/3 as a product.

• 0. 4/5 x 5/6

• 7/8 x 9/10

• 1/3 x 2/3

• 3/4 x 7/12

• 6/7 x 7/9

1. Barry made a model to show multiplication of a fraction by a fraction. What multiplication sentence does the model represent? (Write your answer as an equation)

2. (HINT: rows shaded/total rows * columns shaded/total columns = ?)

Mathematical Equivalence

ON

Mathematical Equivalence

ON

Mathematical Equivalence

OFF