Jawabanmu

2014-09-11T17:55:00+07:00
1. 20 + (-23) = 20 - 23 = -3
2. -20 + (-13) = -20 - 13 = -33
3. -57 + 15 : = -42
4. -17 - 46 = -63
5. -19 - (-15) = -19 + 15 = -4
6. 16 - (-27) = 16 + 27 = 43
7. -21 X (-17) = 357
8. 100 : (-25) = -4
9. (-2050) : 5 = - 410
10. -1225 : (-25) = 49
11. 625 : -5 =
-125