Operations with Rational Numbers

-5.7 + 0.9

• 2.1
• -4.8
• -8.3
• -10.7

Tags

CCSS.7.NS.A.1C

• 2.6785
• 26.785
• -2.6785
• -26.785

Tags

CCSS.7.NS.A.2A

• -6/12
• -5/12
• 5/12
• -5/7

Tags

CCSS.7.NS.A.2A

Divide.

• -1/10
• -5/8
• -2/20
• 5/8

Tags

CCSS.7.NS.A.2B

-6.3(-0.6)

• -3.78
• 5.76
• 3.78
• -5.12

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

In the world’s coldest freezer, sodium gas was cooled to a temperature of 78.5°C below zero and then cooled 194.65°C more. What was the new temperature of the sodium gas?

• –273.15°C

• –272.7°C

• –202.5°C

• –116.15°C

Tags

CCSS.7.NS.A.1C

Mr. Smith has an account balance of -$275.78. He deposits $139.20 into his account. What is Mr. Smith's account balance now?

• $-414.98

• $-136.58

• $136.58

• $414.98

Tags

CCSS.7.NS.A.1C

• 46

• -10

• 10

• -46

Tags

CCSS.7.NS.A.1C

Which expression can also be used to calculate the expression above?

• 
• 
• 
• 

Tags

CCSS.6.NS.A.1

Ella played a math game and had five cards shown. Her score was the sum of the numbers on these five cards. What was Ella's score?

• 3

• 23

• -5

• 10

Tags

CCSS.7.NS.A.1C