Odpowiedź:
zad 1
a) (7 + 3 * 2²) - (13 - 3 * 4) = (7 + 3 * 4) - (13 - 12) = 7 + 12 - 1 = 18
b) (4 + 1/2 * 6)/(2 + 1,5) = (4 + 3)/3,5 = 7/3,5 = 2
c) 0,4² + (1,1² - 0,3 * 0,4) = 0,16 + (1,21 - 0,12) = 0,16 + 1,09 = 1,25
d) (- 5 + 7 - 2³)/(4 - 6) = (2 - 8)/(- 2) = - 6/(- 2) = 6/2 = 3
zad 2
a) 2/7 * 28 = 2 * 4 = 8
b) 4/9 * 81 = 4 * 9 = 36
zad 3
a) 12 : 1/3 = 12 * 3 = 36
b) 4 : 3/8 = 4 * 8/3 = 32/3 = 10 2/3
zad 4
41,929123 ≈ 42,0
812,51427 ≈ 812,51
73,15256 ≈ 73,153
