Question

Te trzy zadania proszę bez żadnych żartów potrzebne daje naj

Answer 1

Zad 1
a) 1/2 * 16 : 8 = 8:8 = 1
b) (1/2)²:8*4= 1/4 :8*4 = 1/4 * 1/8 *4 = 1/32 *4 = 4/32
c) 8:4*(1/2)²= 2* 1/4 = 2/4 = 1/2
d) (8:4)² * 1/2 = 2² *1/2 = 4* 1/2 = 4/2 = 2

zad 2
a) 3/4 +0,75 * 1 1/3 = 3/4 + 3/4 * 1 1/3 = 3/4 + 1 = 1 3/4
b) 3,7 - 1,2 : 1/2 = 3,7 - 1,2 * 0,5 = 3,7 - 0,6 = 3,1
c) 5 * 0,3 + 3 * 2/5 = 1,5 + 3 * 0,4 = 1,5 + 1,2 = 2, 7
d) 1,2 : 1/3 - 1,4 * 2/7 = 6/5 * 3/1 - 7/5 *2/7 = 18/5 - 2/5 = 16/5 = 3 1/5

zad 3
a) 1/2 * (4/5 + 1,2 ) = 1/2 * (4/5 + 6/5) = 1/2 * 10/5 = 1/2 * 2 = 1
b) (3/4 - 1/5) : 0,5 = (15/20 - 4/20) : 0,5 = 11/20 : 1/2 = 11/10 = 1 1/10
c) (1 1/5 - 0,5) * 3 1/3 = (12/10 - 5/10) * 3 1/3 = 7/10 * 10/3 = 7/3 = 2 1/3
d) (5,6 - 3,1) : 3 1/2 = 2, 5 * 2/7 = 5/7