Jawabanmu

2014-08-28T16:19:27+07:00
2014-08-28T16:26:39+07:00
-1+4-(-7) = 10
-20x(-6) = 120
-15x(-25)x(-4) = -1500
12x(-5)x(-17) = 102
-1x(-2)x(-3)x(-4)x(-5) = -120
99x(-99) = -9801
12x(-7)+(-16):(-2) = -76
5x(15-6) = 45
-15:(-3)-7x(-4):5-(-28) = 33
-5x-5+4-9 = 20