Add −815+415.(1 point)

Responses

−415
negative Start Fraction 4 over 15 End Fraction

415
Start Fraction 4 over 15 End Fraction

−1215
negative Start Fraction 12 over 15 End Fraction

45

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−815+415 = -400

Add −1.2+7.6.(1 point)

Responses

−8.8
negative 8.8

8.8
8.8

6.4
6.4

−6.4

−1.2+7.6 = 6.4

Add −1310 +(−4215).(1 point)

Responses

−515
negative 5 Start Fraction 1 over 5 End Fraction

−256
negative 2 Start Fraction 5 over 6 End Fraction

−516
negative 5 Start Fraction 1 over 6 End Fraction

−51330

−1310 + (−4215) = −5525

Add −4.85+(−2.54).(1 point)

Responses

−7.39
negative 7.39

−6.39
negative 6.39

2.31
2.31

−2.31

−4.85 + (−2.54) = −7.39

Add 4.6+(−9.04).(1 point)

Responses

13.64
13.64

−4.44
negative 4.44

−13.64
negative 13.64

4.44

4.6 + (−9.04) = −4.44