1) (9.4 - x) + 2.18 = 8.5;
9.4 - x = 8.5 - 2.18;
x = 9.4 - 6.32;
x = 3.08;
2) 3.16 * 0.45 = 1.422 = 1.42;
3) 6.1 : 0.42 = 610 / 42 = 14 22/42 = 14 11/21;
4) 4.26 + 5.09 + 6.8 = 16.15;
1) (9.4 - x) + 2.18 = 8.5;
9.4 - x = 8.5 - 2.18;
x = 9.4 - 6.32;
x = 3.08;
2) 3.16 * 0.45 = 1.422 = 1.42;
3) 6.1 : 0.42 = 610 / 42 = 14 22/42 = 14 11/21;
4) 4.26 + 5.09 + 6.8 = 16.15;