а) 715+725+312+38 = 7(15+25) + 3(12+8) = 740 + 320 = 280 + 60 = 340
б) 982-290+817+38 = 98(2-90) + 8(17+3) = 98(-88) + 820 = -8624 + 160 = -8464
в) 3759+3741+6349-3963 = 37(59+41) + 63(49-39) = 37100 + 6310 = 3700 + 630 = 4330
г) 1112+2912+1643+8443 = 12(11+29) + 43(16+84) = 1240 + 43100 = 480 + 4300 = 4780
д) 14237-4237+4318+718 = 37(142-42) + 18(43+7) = 37100 + 1850 = 3700 + 900 = 4600
е) 4179+417+4121+1617 = 41(79+21) + 4(17+21) = 41100 + 438 = 4100 + 152 = 4252
а) 715+725+312+38 = 7(15+25) + 3(12+8) = 740 + 320 = 280 + 60 = 340
б) 982-290+817+38 = 98(2-90) + 8(17+3) = 98(-88) + 820 = -8624 + 160 = -8464
в) 3759+3741+6349-3963 = 37(59+41) + 63(49-39) = 37100 + 6310 = 3700 + 630 = 4330
г) 1112+2912+1643+8443 = 12(11+29) + 43(16+84) = 1240 + 43100 = 480 + 4300 = 4780
д) 14237-4237+4318+718 = 37(142-42) + 18(43+7) = 37100 + 1850 = 3700 + 900 = 4600
е) 4179+417+4121+1617 = 41(79+21) + 4(17+21) = 41100 + 438 = 4100 + 152 = 4252