6
13 + -12 - 5 = -4 13 + -12 = 1 - 5 = -4
6
6
-8 - (-13) = - 8 + 13 = +5 ( minus a minus is a plus)
-5 + (-4) - 12 - 20 - (-10) + 6 = -25
10 - 5 + 14324 + 12 + 30 - 1000 = 13371
12 - 8 + 3 + 5 = 12
It is: 7+13-6+5 = 19
It is: 4/7 minus 5/12 = 13/84
13...... 9 plus 5 equals 14...... 14 minus 1 equals 13
13 - 1/5 = 12 4/5