add subtract rationals

-2.61 + (-6.88)

• 9.49
• -9.49
• 4.27
• -4.27

9 + -6.73

• 2.27
• -2.27
• 15.73
• -15.73

7.19 + (-5.34)

• 12.53
• -12.53
• 1.85
• -1.85

34.5 + (-7)

• -41.5
• 41.5
• -27.5
• 27.5

-40 + 15.05= 

• 55.05
• 24.95
• -24.95
• 14.65

-4.7 + 18.5

• 23.2
• 13.8
• -13.8
• -23.2

- 2.5 + - 4.1

• -1.6
• 1.6
• -6.6
• 6.6

When adding decimals with the same sign you.....

• subtract and take the sign of the larger number
• add the opposite
• add and keep the sign
• subtract and keep the sign

When adding decimals with different signs you....

• subtract and take the sign of the larger number
• add the opposite
• add and keep the sign
• subtract and keep the sign

-7.79 + 5.4

• 4.61
• -2.19
• -2.39
• 2.11