Add −815+415.(1 point)
Responses
−415
negative Start Fraction 4 over 15 End Fraction
45
Start Fraction 4 over 5 End Fraction
−1215
negative Start Fraction 12 over 15 End Fraction
415
Start Fraction 4 over 15 End Fraction
The correct response is -400.
Add −815+415.(1 point)
Responses
−415
negative Start Fraction 4 over 15 End Fraction
45
Start Fraction 4 over 5 End Fraction
−1215
negative Start Fraction 12 over 15 End Fraction
415
The correct response is -400.
Add −1310 +(−4215).(1 point)
Responses
−256
negative 2 Start Fraction 5 over 6 End Fraction
−515
negative 5 Start Fraction 1 over 5 End Fraction
−51330
negative 5 Start Fraction 13 over 30 End Fraction
−516
negative 5 Start Fraction 1 over 6 End Fraction
The correct response is -5525.
Add −1310 +(−4215).(1 point)
Responses
−2/5/6
negative 2 Start Fraction 5 over 6 End Fraction
−5/1/5
negative 5 Start Fraction 1 over 5 End Fraction
−5/1/3/3/0
negative 5 Start Fraction 13 over 30 End Fraction
−5/1/6
negative 5 Start Fraction 1 over 6 End Fraction
The correct response is -5525.
Add −1.2+7.6.(1 point)
Responses
−6.4
negative 6.4
−8.8
negative 8.8
8.8
8.8
6.4
The correct response is 6.4.
Add −4.85+(−2.54).(1 point)
Responses
2.31
2.31
−6.39
negative 6.39
−2.31
negative 2.31
−7.39
The correct response is -7.39.
Add 4.6+(−9.04).(1 point)
Responses
−4.44
negative 4.44
13.64
13.64
4.44
4.44
−13.64