Adding Subtracting Rational Numbers Like Bases

-7.8 + (-0.8)

• 8.6

• -8.6

• 7

• -7

6.59 + (−7.8) − (−2.41)

• 16.8

• 11.98

• -3.62

• 1.2

• A

• B

• C

• D

• A

• B

• C

• D

-51 + 81.623

• 30.623

• -30.623

• 132.623

• -132.623

34.5 + (-7) = (a)  

• -41.5

• 41.5

• -27.5

• 27.5

• -2

• 2

• -1

• 1

Add. 

• -3

• 0.8

• -4

• 4

• 
• 
• 
• 

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

Mathematical Equivalence

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