Выполни действия 81:9+26*6-144:72 ; 4*18-9-32:8+111*8 ; (25*3:15)*(48*2:16) ; (12*7:42)*(16*6:24) пожалуйста по действиям

81 : 9 + 26* 6- 144: 72 = 163 1) 81 : 9 = 9 2) 26 * 6 = 156 3) 144 : 72 = 2 4) 9 + 156 = 165 5) 165 - 2 = 163 ----------------------------------------- 4 * 18 - 9 - 32 : 8 + 111 * 8 = 947 1) 4 * 18 = 72 2) 32 : 8 = 4 3) 111 * 8 = 888 4) 72 - 9 = 63 5) 63 - 4 = 59 6) 59 + 888 = 947 -------------------------------------- (25 * 3 : 15) * (48 * 2 : 16) = 30 1) 25 * 3 = 75 2) 75 : 15 = 5 3) 48 * 2 = 96 4) 96 : 16 = 6 5) 5 * 6 = 30 ------------------------------- (12 * 7 : 42) * (16 * 6 : 24) = 8 1) 12 * 7 = 84 2) 84 : 42 = 2 3) 16 * 6 = 96 4) 96 : 24 = 4 5) 2 * 4 = 8

1. [latex]\frac{81}{9}+26*6-\frac{144}{72}=9+156-2=165-2=163;[/latex] 2. [latex]4*18-9-\frac{32}{8}+111*8=72-9-4+888=72+888-9-4=960-13=947;[/latex] 3. [latex](\frac{25*3}{15})(\frac{48*2}{16})=(\frac{25*1}{5})(\frac{48*1}{8})=(\frac{5*1}{1})(\frac{6*1}{1})=5*6=30;[/latex] 4. [latex](\frac{12*7}{42})(\frac{16*6}{24})=(\frac{12*1}{6})(\frac{16*1}{4})=(\frac{2*1}{1})(\frac{4*1}{1})=2*4=8.[/latex]