21 : 3 * 6 - (18 + 14) : 8
1) 18 + 14 = 32 2) 21 : 3 = 7 3) 7 •6 = 42 4) 32 : 8 = 4 5) 42 - 4 = 38 Ответ 38
18+14=32 21:3=7 7*6=42 32:8=4 42-32=10