1) 12/5 + 9/4 = *1 ponto
83/20
93/10
93/20
73/20
2) 20/3 - 16/9 = *
1 ponto
44/27
34/9
24/12
44/9
3) 17/14 x 26/19 = *
1 ponto
442/266
452/266
442/256
422/256
4) 27/34 : 15/30 = *
1 ponto
910/510
810/510
810/520
910/520
5) √169/225 = *
1 ponto
12/13
14/12
11/13
13/15
6) ( 11/10) ² = *
1 ponto
121/100
22/20
121/20
22/100
7) 234,67 + 56,9 = *
1 ponto
191,57
291,67
281,57
291,57
8) 823,5 – 9,45 = *
1 ponto
81, 405
814,05
8,1405
81405
9) 25,9 . 1,2 = *
1 ponto
3,108
21,08
310,8
31,08
10) 24,9 : 5,43 = *
1 ponto
4,58
3,58
45,08
45,82