Question

Вычислите / 7 Класс / Алгебра

1) $( 6frac{1}{8} * 2 frac{2}{7} - 12 frac{11}{19} ) : 27 + frac{18}{19} =$
2) $( 3 frac{3}{4} : 4 frac{2}{7} - (-frac{1}{2} ) ^{3} ) : frac{4}{5} - 2frac{1}{4}=$
3) $(frac{5}{9} - 5frac{1}{2} ) : 8frac{1}{11} * 3frac{3}{5} =$
4) $( 10 frac{1}{2} - 11 ) ^{2} * ( 20 - 21frac{1}{3} ) - 5 frac{2}{3} =$

Answer 1

1.
(6 18* 2 27 - 12 1119):27+1819=1
498*167=7*2=14
14-23919=26619-23919=2719
2719:27=2719*127=119
119+1819=1919=1
2.
(3 34:4 27-(-12)^3):45-2 14=-1
154:307=154*730=14*72=78
78+18=88=1
1:45=1*54=54
54-95=-44=-1
3.
(59-5 12):8 111*3 35=-2.2
59-112=1018-9918=-8918
-8918:8911=-8918*1189=-1118
-1118*186=-115=-2.2
4.
(10 12-11)^2*(20-21 13)-5 23=-6
21/2-11=212-222=-12
(-12)^2=14
20-643=603-643=-43
14*(-43)=-13
-13-173=-183=-6