Topic 1: Rational Number Operations

Which of these situations can be represented by the opposite of -25?

• A scuba diver is 25 feet below sea level.

• Leon gets paid $25.

• An airplane descends 25 feet.

• Sara has a $25 debt.

Tags

CCSS.6.NS.C.5

The number line represents Allie’s scores in the first two rounds ofa card game. Explain Allie’s gains and losses in the game.

Allie ​ (a)   points in the first round of the card game. In the second round, she ​ (b)   points. After the first two rounds, she has ​ (c)   points.

• gains 4
• loses 4
• 0
• eats -4
• 8
• 4

Tags

CCSS.7.NS.A.1B

On Friday, the temperature was 82°F. The temperature changed by -2°F on Saturday, and then it changed by 2°F on Sunday. What was the temperature on Sunday? Explain how the temperature changed using integers.

Mathematical Equivalence

ON

Tags

CCSS.7.NS.A.3

Choose whether each decimal terminates or repeats.

3.232323... ​ ​ (a)  

1.789 ​ (b)  

0.9999... ​ (c)  

6.25 ​ (d)  

• repeats
• terminates

Tags

CCSS.7.NS.A.2D

CCSS.8.NS.A.1

Mathematical Equivalence

ON

Tags

CCSS.7.NS.A.2D

CCSS.8.NS.A.1

Which subtraction expression does the number line show?

• -13 + 4

• -4 - 13

• -4 - 9

• -4 + 9

Tags

CCSS.7.NS.A.1B

The temperature in Anchorage, Alaska, was -3°C in the afternoon. After the sun went down, the temperature dropped 6 degrees. Write an equation to represent the situation.

Mathematical Equivalence

ON

Tags

CCSS.7.NS.A.1C

Rob borrows $15.00 from his father, and then he borrows $3.00 more. How much money does Rob owe his father?

• 15

• 18

• 12

• 3

Tags

CCSS.2.OA.A.1

Select all the sums that are positive.

• -5 + (-2)

• 5 + (-2)

• -3 + 4

• 0 + (-3)

• -2 - (-4)

Tags

CCSS.7.NS.A.1C

Sandra plays a matching game. In order to advance to the next level, she must score at least 10 points. She scores 18 points for correct matches and -6 points for incorrect matches. Did Sandra make it to the next level?

• Yes

• No

• Not enough information

• Maybe

Tags

CCSS.6.NS.C.7A

CCSS.6.NS.C.7B