Jawabanmu

2014-08-19T18:24:00+07:00
A. 5 x ( 15 - 6 ) = 5 x 9 = 45
b. 12 x (-7) + (-16) : 2 = -84 -8 = -92
c. -15 : (-3) - 7 x (-4) = 5 + 28 = 33
d. [ 1 + 2 : 3 x 4 ] x [ 9 x 7 (7-8) : (6 + 5)] =
 \frac{3}{3} +  \frac{8}{3} ] x [ 9 x 7 x -1 : 11 ] =
 \frac{11}{3} x (- \frac{63}{11} ) = 21