Joe said -75+54 was 129. Is he wrong? If so, then explain his error and the real answer to the problem.
What is yes, because he added 75+54 instead of -75+54, which is 21
200
4+(-4)
What is 0?
200
5-(-4)
What is 9?
200
-9*12
What is -108?
200
98-65
What is 33?
200
Joe was 2,000 feet above sea level. His friend Bob was 1,568 feet below sea level. Joe wanted to know what the distance was between them. What was it?
What is 3,568 feet?
300
-15+(-17)
What is -32?
300
-54-13
What is -67?
300
-15*-7
What is 105?
300
40-(-57)
What is 97?
300
Billy said -89+56 is -33. Is he wrong? If so, explain his error and the correct answer.
What is no?
400
-35+27
What is -8?
400
35-(-60)
What is 95?
400
32*-21
What is -672?
400
-98+50
What is -48?
400
Harry was playing football.He started at twenty yards. He got the ball, but lost ten yards. The next play he gained fifteen, and the next play he lost five. What yard is he at now?
What is 20 yards?
500
-435+847
What is 412?
500
30-(-60)-32
What is 58?
500
-50*-12*-6
What is -3,600?
500
-57+76+-64
What is -45?
500
Sally says -12*-12*-5 is -720, but Sarah says -12*-12*-5 is 720. Who's right? Explain.
What is -720, because -12*-12 is 144 and 144*-5 is -720.