Question

2) 60+2.{[4.(6+2)-10]+12}

3) [(4+16.2).5-10].100=

4){10+[5.(4+2.5)-8].2}-100=

5) 80-5.(28-6.4)+6-3.4=

6) 4.(10+20+15+30=
ajuda???;-)

Answer 1

2)
60+2.{[4.(6+2)-10]+12}
60+2.{[4.8-10]+12}
60+2.{[32-10]+12}
60+2.{22+12}
60+2.32
60+64
124

3)
[(4+16.2).5-10].100
[(4+32).5-10].100
[36.5-10].100
[180-10].100
170.100
17000

4)
{10+[5.(4+2.5)-8].2}-100
{10+[5.(4+10)-8].2}-100
{10+[5.14-8].2}-100
{10+[70-8].2}-100
{10+62.2}-100
{10+124}-100
134-100
34

5)
80-5.(28-6.4)+6-3.4
80-5.(28-24)+6-3.4
80-5.4+6-3.4
80-20+6-12
60+6-12
66-12
54

6)
4.(10+20+15+30)
4.75
300