Respostas
a) 64 + 1 - 512 + 8 =
65 - 504 =
- 439
b) 8 + 5 - 2.6 =
13 - 12 = 1
c) 1.000 x 10.000 x 1 x 100.000 = 100.000.000.000.000
d) 64 - 8 - 9 - 1 = 46
e) 2³/3³ + 2.4/3 - 48 =
8/27 + 8/3 - 48 = mmc (27,3) = 27
1.8/27 + 9.8/27 - 27.48/27 =
8/27 + 72/27 - 1296/27 =
- 1216/27
f) [(2.3/6 + 3.4/6) + 3.1³/3³] - 1 =
[(6/6 + 12/6) + 3.1/9] - 1 =
[18/6 + 3/9] - 1 =
[3.18/18 + 2.3/18] - 1 =
[54/18 + 6/18] - 1 =
60/18 - 1 =
1.60/18 - 18.1/18 =
60/18 - 18/18 =
42/18 = (simplificando ambos por 6)
7/3
g) 2 x [3 x (- 2) +4] - 5 =
2 x [- 6 + 4] - 5 =
2 x (-2) - 5 =
- 10 - 5 =
- 15
h) 50.000 + 2.500 - 1.000 =
51.500
i) 5²/3² - 2³/3³ - 1 =
25/9 - 8/27 - 1 = mmc (9,27) = 27
3.25/27 - 1.8/27 - 27.1/27 =
75/27 - 8/27 - 27/27 =
40/27
j) 16. 8 . 1/2/4 =
128/2/4 =
128/2 . 1/4 =
128/8 = 16