Răspuns:
a) 1+2+3+4+5+6+7+ 8*9= 7*8:2 +72= 56:2+ 72= 28+72=100
b) 1+6+4*5-6+7+72=1+20+7+72=28+72=100
c) 1+6+4+5+67+8+9= 16+67+17= 33+67=100
d) 2+34+56 +7 - 8+9= 36+56+16-8=92+8=100
e) |-12|-1+|-72|+17= 12-1+72 +17= -85 +17= -68
f) 91- (-9)= 91+9=100
