Resposta :
Resposta:
15 + 21 - 6 + 3 =
39 - 6 =
33
1440:{30×[20+(49-35)×2]}=
1440:{30×[20+(+14)×2]}=
1440:{3×[20+14×2]}=
1440:{3×[20+28]}=
1440:{3×[48]}=
1440:{3×48}=
1440:{144}=
1440:144=
10
Resposta:
15 + 21 - 6 + 3 =
39 - 6 =
33
1440:{30×[20+(49-35)×2]}=
1440:{30×[20+(+14)×2]}=
1440:{3×[20+14×2]}=
1440:{3×[20+28]}=
1440:{3×[48]}=
1440:{3×48}=
1440:{144}=
1440:144=
10