Znajdź liczbę x : a) x - 2,306=18,947 b) 8,481 + x = 13,1 Zad 2 : Oblicz sposobem pisemnym A) 7,23 + 4,575 - ( 8,3 - 4,564 ) = B) 200 - ( 183 - 15,37 ) =

a x - 2,306=18,947 x=18,947+2,306 x=21,253 b. 8,481 + x = 13,1 x=13,1-8,481 x=4,619 zad2 a. 7,23 + 4,575 - ( 8,3 - 4,564 ) =11,805-3,736=8,069 200 - ( 183 - 15,37 ) =200-167,63=32,37