Odpowiedź:
a)
3 1/3 + (-4,8) = 3 1/3 - 4 4/5 = 3 5/15 - 4 12/15 = -1 7/15
b)
-2,8 + (-11 1/4) = -2 4/5 - 11 1/4 = -2 16/20 - 11 5/20 = -13 21/20 = -14 1/20
c)
√4/9 * √(2 1/4) = 2/3 * √9/4 = 2/3 * 3/2 = 1
d)
5 * 3 1/5 - 0,5² - √9/16 = 5 * 16/5 - 0,25 = 16 - 0,25 = 15,75
e)
∛1/8 + (-2)^4 - 1/8 = 1/2 + 16 - 1/8 = 16 4/8 - 1/8 = 16 3/8
f)
-(-7)² + √49 = -49 + 7 = -42
g)
-4² : 2³ + 1/3∛27 = -16 : 8 + 1/3 * 3 = -2 + 1 = -1
h)
-2 * (-3,3) : (-2 1/5) + 7 1/4 = 6,6 : (-11/5) + 7 1/4 = -6,6 * 5/11 + 7 1/4 =
= -1,1 * 5 + 7 1/4 = -5,5 + 7,25 = 1,75
Szczegółowe wyjaśnienie:
