Lesson 14 Session 1 and 2 Ready Classroom

Multiple Choice

What is the value of the expression $$\frac{3}{5}-\left(-\frac{2}{3}\right)$$

•  $$\frac{5}{2}$$

• $$\frac{19}{15}$$

• $$\frac{1}{2}$$

• $$\frac{1}{15}$$

Multiple Choice

• $7

• $10

• $12

• $13

Fill in the Blanks

The circle graph shows the percentage of students who earned an A, B, C, D, or F on the

most recent college history test.

Multiple Choice

How do you find the mean of a set of numbers?

• Mean = (Difference of highest and lowest) / (Count of numbers)
• Mean = (Sum of all numbers) / (Count of numbers)
• Mean = (Product of all numbers) / (Count of numbers)

Multiple Choice

What is the mean of the temperatures recorded by Noah over the week: –7.3°F, –11.2°F, 2.2°F, 0°F, –1.7°F, 3.3°F, 0°F?

• -3.5°F
• -2.1°F
• -5.0°F
• 1.0°F

Multiple Choice

What is the approximate value of –24 3/4 + 15 1/4 if you round to the nearest integer?

• -10

• -9

• -8

• -7

Multiple Choice

Enrique says that to round a decimal to the nearest integer, you can just ignore the decimal part. Is Enrique correct? Explain.

• No, Enrique is not correct.
• Yes, Enrique is correct.

Multiple Choice

What is the mean of the elevations recorded by Mei at Death Valley National Park? -32.6, 24.7, -8.3, 19.1, -8.4

• 0.3
• -2.4
• 3.7
• -1.1
• -5.2

Multiple Select

Which of the following are examples of rational numbers?

• -8.3

• 24.7

• π

• √2

Multiple Choice

Elena sells replacement parts for pinball machines. One customer buys a part that costs $44.50 and returns two parts that cost $26.30 and $21.40. Is the cost of the new order more or less than the returns?

• less
• more

Multiple Choice

Elena sells a part for $44.50 and accepts returns of two parts costing $26.30 and $21.40. The net amount Elena receives is ___ dollars.

• -10.50
• 15.80
• -3.20
• 3.20

Multiple Choice

Glen, Andre, and Ramón share the cost of renting a vacation cottage. The total cost is $960. Glen pays 30% of the total cost. Andre pays 0.45 of the total cost. Ramón pays the rest. How much does Ramón pay? Show your work.

• $480
• $360
• $600
• $240

Multiple Choice

Simplify    $$\frac{0.5\left(-77.8\ -\ 11\right)}{-4}$$   . Show your work.

• -11.1
• -5.5
• 22.2
• 11.1