Пошаговое объяснение:
5*45 =5*40+5*5=200+25=225
44*8 =40*8+4*8=320+32=352
28*7 = 20*7+ 8*7 = 140+56 = 196
5*49 = 5*40 + 5*9 = 200+ 45 = 245
6*22 = 6* 20 + 6*2 = 120+12 = 132
6*51 = 6*50+6*1 = 300+6=306
8*95 = 8*90 + 8*5 = 720+40 = 760
5*86 = 5*80 + 5*6= 400+30=430
74*3 = 70*3 + 4*3 = 210+12 = 222
69*8 = 60*8 + 9*8=480+72=552
Пошаговое объяснение:
5*45 =5*40+5*5=200+25=225
44*8 =40*8+4*8=320+32=352
28*7 = 20*7+ 8*7 = 140+56 = 196
5*49 = 5*40 + 5*9 = 200+ 45 = 245
6*22 = 6* 20 + 6*2 = 120+12 = 132
6*51 = 6*50+6*1 = 300+6=306
8*95 = 8*90 + 8*5 = 720+40 = 760
5*86 = 5*80 + 5*6= 400+30=430
74*3 = 70*3 + 4*3 = 210+12 = 222
69*8 = 60*8 + 9*8=480+72=552