1.Rezolvaţi următoarele exerciţii:
2+ 6+ 9-10 + 7=
13 - 8 +61 - 40 =
2 x 3 x 3:6=
27:3 x 7 +15:5 x 4 =
(7x 8-6): 5 =
(7 x 7-35): 2 =
250 - (13 +6 x 9) =
(15 + 18:9 +23) : 10 =
100- 4 x 8 +16:2=
1 x 1 + 1:1 +1=
(1 x 1+1:1 +1): 1x1 =
(22 - 19) x (11 - 7) =
(20:10) x (24:4) =
(64 + 8):9 + 38 =
12:2 + 24:3+2 x 4x7-9x2:3=
(5 x 5 - 14:2): (45:5-21:3) =​