Question

3.75+3.25=
5.97+5.3=
4.101+4.99=
20.47+80.47=
50-{40-3[5-(10-7)]}

Me ajudem por favoor !!

Answer 1

3.75+3.25=
7

5.97+5.3=
11,27

4.101+4.99=
9,091

20.47+80.47=
100,94

50-{40-3[5-(10-7)]}=
50-{37[5-3]}=
50-{37+2}
50-39
11