Răspuns :
1.10*2-20=20-20
=0
2.12-6*2=12-12
=0
3.4*4+10=16+10
=26
4.12+12:4=12+3
=15
5.6+16:4=6+4
=10
6.10+3+70:10=13+7
=20
=0
2.12-6*2=12-12
=0
3.4*4+10=16+10
=26
4.12+12:4=12+3
=15
5.6+16:4=6+4
=10
6.10+3+70:10=13+7
=20