Rational Number Operations Review

What is the rule for dividing fractions? 

• keep, change, opposite
• keep, change, flip

• keep, keep, change
• keep, keep, opposite

Tags

CCSS.6.NS.A.1

Find the quotient.

• 1  1/4
• 1
• 1  1/5
• 1  2/7

Tags

CCSS.6.NS.A.1

Solve.

• 8 / 9
• 1/5
• 1
• 4/5

Tags

CCSS.6.NS.A.1

Divide. 5/3 ÷ -15/7

• 3  4/7
• -7/9

• -7/15

• 2  2/15

Tags

CCSS.7.NS.A.2B

In the Sahara Desert one day it was 136 degrees. In the Gobi Desert a temperature of -50 degrees was recorded. What you need to do to find the difference?

• Subtract

• Describe what's different about the two deserts

• Add

• Divide

Tags

CCSS.7.NS.A.1C

Metal mercury at room temperature is a liquid. Its melting point is ^-39°C. The freezing point of alcohol is^-114°C. How much warmer is the melting point of mercury than the freezing point of alcohol?

• 153° warmer

• 75° warmer

• 39° warmer

Tags

CCSS.7.NS.A.3

-2 + 9

• -11
• -7
• 7
• 11

Tags

CCSS.7.NS.A.1C

-7 + -4

• -11
• -3
• 3
• 11

Tags

CCSS.7.NS.A.1C

-8 + 3

• -11
• -5
• 5
• 11

Tags

CCSS.7.NS.A.1C

How do you change subtraction to addition?

• You can't

• Keep the first number the same and change the subtraction to addition.

• Keep the first number the same, change to subtraction, and change the sign of the second number.

• Change the sign of the first number then change from subtraction to addition.

Tags

CCSS.7.NS.A.1C