Question

Используя свойства умножения,найдите значение выражений 32х46-26х32=
44х18+12х44=
75х85-85х73=
19х42-17х42=
26х58-58х16=
121х21+79х121=

Answer 1

32x46-26x32 = 32x(46-26) = 32 x 20 = 640

44x18 +12x44 = 44x(18+12) = 44 x 30 = 1320

75x85-85x73 = 85 x (75-73) = 85 x 2 = 170

19x42-17x42 = 42 x (19-17) = 42 x 2 = 84

26x58-58x16 = 58 x (26-16) = 58 x 10 = 580

121x21+79x121 = 121 x (21+79) = 121 x 100 = 12100