Efectuează, respectând ordinea efectuării operațiilor:
a) 4 x 2 x 8-15 =
b) 22 + 6 x 7 =
c) 307 - 95 + 8 x 3 =
d) 21:3 + 15:5 =
e) 45:9+ 6x7 =
f) 32:8:2-1 =
8) 123 + 40: 8 =
h) 1 120 + 32:8 +229 =
1) 3x6: 2 + 2 x 5:10 =
i) 600 - 2x3 x4-9 =
k) 8 x 4 + 9 x 7 + 5 : 5 =
1) 81:9:3:3+ 10 X 4: 8 =
m) 20:4 6:3:5+24 : 6 =
n) 35:5 x 8 + 2 x 9:3 =
o) 100 - 25:5:5 x 6 x 9 =
p) 400 - 6x6 + 2 x 8:4 =
r) 150 +4:2 x 6:4 6:2 = urgent dau Corona ​