Add/Subtract and Multiplying/Dividing Rational Numbers

When Multiplying/Dividing Mixed Numbers you MUST 1st...

• Find the square roots.

• Subtract.

• Turn them to IMPROPER FRACTIONS!

• Find common denominators.

Tags

CCSS.7.NS.A.2A

When MULTIPLYING AND DIVIDING a (Negative)(Negative) =

• a POSITIVE answer.

• a NEGATIVE answer.

• a square root.

• a mess.

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

34.5 + (-7) = (a)  

• -41.5

• 41.5

• -27.5

• 27.5

Tags

CCSS.7.NS.A.1C

-7.79 + 5.4

Mathematical Equivalence

ON

Tags

CCSS.7.NS.A.1C

Match the following

• -10.35

• -3.18 + 8.02

• 4.84

• -4.7 + (-5.65)

• 3.4

• -3.8 + 7.2

Tags

CCSS.7.NS.A.1C

What is the sum of 4 3/10 and (-6.2)? Express your answer as a decimal.

Mathematical Equivalence

ON

Tags

CCSS.7.NS.A.1C

Find the sum. (-4.8) + 2.1

Mathematical Equivalence

ON

Tags

CCSS.7.NS.A.1C

Evaluate:  -19 -10

• 9

• -9

• -29

• 29

Tags

CCSS.7.NS.A.1C

−28+(−8)=

• 36

• −36

• −20

• 20

Tags

CCSS.7.NS.A.1C

-40 + 15.05

• 55.05

• 24.95

• -24.95

• 14.65

Tags

CCSS.7.NS.A.1C