Răspuns:
a. -1×(+2)×(-3)×(+4)×(-5)×(+6)
-2x(-3)×(+4)×(-5)×(+6)
6×(+4)×(-5)×(+6)
24×(-5)×(+6)
-120x6
-720
b.-5×[-4-3×(-2-1)]
-5x[(-4-3x(-3)]
-5x(-4+9)
-5x5
-52
c.11×(-2)+(-4)×[-100-4×(-26)]
-22+(-4)x(-100+104)
-22+(-4)x4
-22+(-4)
-26
d.200-7×[(-25+4×7)-3×(-11-13)]
200-7x[(-25+21)-3x(-24)]
200-7x(-4+72)
200-7x68
200-476
-276
e.-2×{-2×[-2×(1753-1748)+1]}
2x{-2x[-2x(+5)+1]}
2x[-2x(-10+1)]
2x[-2x(-9)]
2x18
36
