Respuesta
1. 4 - {3(2+5) - 42 + 4 - [5.3]} =
(((4−0×(2+5))−42)+4)−0
(((4−0×7)−42)+4)−0
(((4−0)−42)+4)−0
((4−42)+4)−0
(-38+4)−0
-34−0
-34
2. -5 + 3(8 + 2) - 6:3 + 23 =
(((0−5)+3×(8+2))−6×0)+23×0
((-5+3×(8+2))−6×0)+23×0
((-5+3×10)−6×0)+23×0
((-5+30)−6×0)+23×0
(25−6×0)+23×0
(25−0)+23×0
25+23×0
25+0
25
3. 8+ (3 - 4) + [V25 + 6 - 7+(4+ 3)] =
(8+(3−4))+0
(8+-1)+0
7+0
7
4. 19 - (32 + 4 + 6) + 40+2 = - =
(((19−((32+4)+6))+40)+2×0)−0
(((19−(36+6))+40)+2×0)−0
(((19−42)+40)+2×0)−0
((-23+40)+2×0)−0
(17+2×0)−0
(17+0)−0
17−0
17
5. 2{3-(-2-3) + (3 + 1)2) = 49 7
0×0
0
