вынести за скобку:
24(-5+14) = (-5)*24+ 14*24 = 9*24= 216;
-15(4-15) = -60*(-225) = 13500 ;
21(-4-9) = -89*(-189) = 15876;
-3(-8-4) = -3(-8) + (-3)*(-4)= 12+24= 36;
(24+25)*(-4) = (-4)*24+(-4)*25= -196;
найти общий множитель:
1) 37*29+29*143 = 29(37+143) = 29*180= 5220;
2) 367*24 + 367*76 = 367(24+76)= 367*100 = 36700;
3) 289*129 - 289*24 = 289 (129-24) = 284*105 = 29820;
4) 19*24+24*151 + 170*6 = 456 + 3624 + 1020 = 5100;
5) -15*24-17*15 = 15(-24-17) = 15(-41) = -615;
6) 143*(-672) - 678*(-143) = (-143)*672+678*143= 143*(-6)*(112-113) = 143* (-6)*(-1) = 858;
7) 19* 876 - 67* (-19) = 19*876 + 67*19 = 19(876 +67) = 19*43 = 17917;
8) 5400 - 54*99 = 5400 - 2106 = 3294;
9)777 * 156 +156 = 156*(777+1) = 157*778 = 121368;
10)888*888 - 888*889 - 8880 = - 888*889 - 8880 = - 798312 = - 9768;
вынести за скобку:
24(-5+14) = (-5)*24+ 14*24 = 9*24= 216;
-15(4-15) = -60*(-225) = 13500 ;
21(-4-9) = -89*(-189) = 15876;
-3(-8-4) = -3(-8) + (-3)*(-4)= 12+24= 36;
(24+25)*(-4) = (-4)*24+(-4)*25= -196;
найти общий множитель:
1) 37*29+29*143 = 29(37+143) = 29*180= 5220;
2) 367*24 + 367*76 = 367(24+76)= 367*100 = 36700;
3) 289*129 - 289*24 = 289 (129-24) = 284*105 = 29820;
4) 19*24+24*151 + 170*6 = 456 + 3624 + 1020 = 5100;
5) -15*24-17*15 = 15(-24-17) = 15(-41) = -615;
6) 143*(-672) - 678*(-143) = (-143)*672+678*143= 143*(-6)*(112-113) = 143* (-6)*(-1) = 858;
7) 19* 876 - 67* (-19) = 19*876 + 67*19 = 19(876 +67) = 19*43 = 17917;
8) 5400 - 54*99 = 5400 - 2106 = 3294;
9)777 * 156 +156 = 156*(777+1) = 157*778 = 121368;
10)888*888 - 888*889 - 8880 = - 888*889 - 8880 = - 798312 = - 9768;