Operations with Rational Numbers

• 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

Multiply.

• -7  1/5
• -4/45
• -8
• 7

Tags

CCSS.7.NS.A.2A

-6.3(-0.6)

• -3.78
• 5.76
• 3.78
• -5.12

Tags

CCSS.7.NS.A.2A

solve 

• - 2/9
• - 5/9 
• 2/9
• no there

Tags

CCSS.7.NS.A.1C

Will the answer be positive or negative?
-2 - (-5) - (-1) - (-9)

• Positive
• Negative

Tags

CCSS.7.NS.A.1C

Will the answer be positive or negative?
-2 ÷ (-5) ÷ (-1) ÷ (-9)

• Positive
• Negative

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