ответ:580 + 200 = 780
1000 - 7 = 993
120 : 2 = 60
70 × 7 = 490
5 × 60 = 300
720 : 8 = 90
810 : 9 = 90
630×(-7) = - 4410
600 : 3 = 200
400 × 2 = 600
ответ:580 + 200 = 780
1000 - 7 = 993
120 : 2 = 60
70 × 7 = 490
5 × 60 = 300
720 : 8 = 90
810 : 9 = 90
630×(-7) = - 4410
600 : 3 = 200
400 × 2 = 600