11. 5x5x10 - (1378)
17. 16- 16:8 + (16 - 16):8 + 99
21. 45:5+54:6-(54 +45):(4+5)
23. (8x5:10+6x6) -(10+ 3x3)
25. 33+9:3 x 10 - (60:10x4-20) =
29. 63+3x4-(2x2x2x2:8+576) =
Efectuează:
5
10
10 50:(3*3-3:3 - 3* 3:3) = 10
13. 8+ (8 x 8:8-8) 5
12. 50 x 2 + 6x5 - (27:9+ 6 x 8)
35.
Dad
=
b
15. (12 + 50:10) - 6x2
14. (5 x 8+14:7): (3 x 3 - 14:7) -
C=
calculea
16. (2 + 3 x 4 - 4) * (56:7 - 8) =
Su
18. (45:5+45:9):7+2 x 10:10 =
19. 2x3x5+60:10:6-31 -
20. (100 - 60 - 30) 5+ (10-6:3): 8 =
Efectuea
37.
9
22, (9* 7 -6:3) - (81 - 8 x 8) =
38.
[8
24. 73 - 4x3+ (53 - 24:8 x 6) =
39. 2
26. (14+8:8): 5+5 - (29 - 3:3): 4 =
27. 99 - (13+ 6 x 5 - 8:4) + 5x5=
40. [d
28. (88 - 13+ 6 x 4:8) - (66 - 12 - 7 x 4) =
30. 48+ (73-65) x 6+ (24 + 24.31





va rog sa mă ajutați până la ora 17:​