Addition
Joe said (-75)+54 was 129. Is he wrong, and if so then explain his error and say the real answer to the problem.
What is yes, because he added 75+54 instead of (-75)+54, which is 21
(-9)*12
What is (-108)
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
15+(-17)
What is (-2)
(-54)-13
What is (-67)
(-15)*(-7)
What is 105
Billy said (-89)+56 is (-33). Is he wrong, and if so explain his error and right the right answer.
What is no
(-35)+27
What is (-8)
32*(-21)
What is (-672)
(-98)+50
What is (-48)
Harry was plying 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
(-435)+847
What is 412
(-50)*(-12)*(-6)
What is (-3,600)
(-57)+76+(-64)
What is (-45)
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, since multiplying two negatives equal a positive, times (-5) is (-720), again turning it negative