Примеры: 1000-120= 1200-300 100+200-300+500= 12+300+500-200

Question

Примеры:
1000-120=
1200-300
100+200-300+500=
12+300+500-200

Answer 1

1000-120=880
1200-300=900
100+200-300+500=500
12+300+500-200=612

Answer 2

1)=880
2)=900
3)=500
4)=612