1º 15+[5x(8-6:2)]=
2º 50-[13-(10-2):2]=
3º [40+2x(7-5)]x2-20=
Me ajudemmmmmmm
Soluções para a tarefa
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3
1)
15+[5×(8-6÷2)]=
15+[5×(8-3)]=
15+[5×5]=
15+25=
40
2)
50-[13-(10-2)÷2]=
50-[13-8÷2]=
50-[13-4]=
50-[9]=
50-9=
41
3)
[40+2×(7-5)]×2-20=
[40+2×2]×2-20=
[40+4]×2-20=
44×2-20=
88-20=
68
15+[5×(8-6÷2)]=
15+[5×(8-3)]=
15+[5×5]=
15+25=
40
2)
50-[13-(10-2)÷2]=
50-[13-8÷2]=
50-[13-4]=
50-[9]=
50-9=
41
3)
[40+2×(7-5)]×2-20=
[40+2×2]×2-20=
[40+4]×2-20=
44×2-20=
88-20=
68
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