1) calcule no caderno:

A) -1 -2 3 -9 1/2 6
2 5 2 + 2 1 0
5 0 1 1/4 5 -2

B) 0 1 -2 0
2 5 5 7
6 -12 - 6 -10
2 -8 8 5
1 0 -14 5

Me ajudeeeem,por favor.​