Ответ: а) 43212 : 78 - 407 ∙ 720 + 350 ∙ 509 = -114336
1) 43212 : 78 = 554
2) 407 ∙ 720 = 293040
3) 350 ∙ 509= 178150
4) 554 - 29040+ 178150 = -114336
б) 164 ∙ 756 + 148916 - 564 ∙ 702 + 48 762 : 86 = -122 461
1) 164 ∙ 756= 123984
2) 564 ∙ 702 = 395928
3) 48 762 : 86 = 567
4) 123 984+ 148 916 = 272900
5) -395 928 - 272 900 = -123 028
6) -123 028 + 567 = -122 461
в) (24 968 + 11 648): (768 - 1564) = -46
1) 24 968 + 11 648 = 36616
2) -1564 + 768 =-796
3) 36 616: (-796) = -46
г) 37 115:65 -72 675: 85 =-284
1) 37 115:65 = 571
2) 72 675 : 85 = 855
3) 571 - 855 = -284
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Ответ: а) 43212 : 78 - 407 ∙ 720 + 350 ∙ 509 = -114336
1) 43212 : 78 = 554
2) 407 ∙ 720 = 293040
3) 350 ∙ 509= 178150
4) 554 - 29040+ 178150 = -114336
б) 164 ∙ 756 + 148916 - 564 ∙ 702 + 48 762 : 86 = -122 461
1) 164 ∙ 756= 123984
2) 564 ∙ 702 = 395928
3) 48 762 : 86 = 567
4) 123 984+ 148 916 = 272900
5) -395 928 - 272 900 = -123 028
6) -123 028 + 567 = -122 461
в) (24 968 + 11 648): (768 - 1564) = -46
1) 24 968 + 11 648 = 36616
2) -1564 + 768 =-796
3) 36 616: (-796) = -46
г) 37 115:65 -72 675: 85 =-284
1) 37 115:65 = 571
2) 72 675 : 85 = 855
3) 571 - 855 = -284