Question

Cine îmi rezolva aceste exerciții? Dau 25 de puncte!

Answer 1

a)a×4=32
a=32:4
a=8

8×a=72
a=72:8
a=9
b)m:9=7
m=9×7
m=63
54:m=6
m=54:6
m=9
6×m=24
m=24:6
m=4
c)72:x=9
x=72:9
x=8
x:7=8
x=7×8=56
x:6=9
x=9×6
x=54
64.
$\frac{1}{3}*18+ \frac{1}{2}*12=6+6=12$
65.
$24:3=8, 8+ \frac{1}{3}*30=8+10=18$
66.
$18:3=6$
67.
$101-(27:3)=101-9=92$