Efectuează, respectând ordinea efectuării operaţiilor:
7
a) 4x2 x 8-15 =
b) 22 + 6 x 7 =
c) 307 -95 + 8 x3 =
d) 21:3+ 15 : 5 =
e) 45:9 + 6 x 7 =
f) 32:8:2-1 =
g) 123 + 40: 8 =
h) 1 120 + 32:8 +229 =
1) 3x6:2+2 x 5:10 =
j) 600 - 2x3x4-9 =
k) 8 x 4+9 x 7 +5:5 =
1) 81:9:3:3+ 10 x 4: 8 =
m) 20:46:3:5 + 24:6 =
n) 35:5 x 8 + 2 9:3 =
o) 100 - 25:5:5 x 6 x 9 =
p) 400 - 6x6 + 2 x 8:4 =
r) 150 +4:2x6:4x6:2 =​