Question

efectueaza 36:4×(40:8)+25= 12+4×(19-8×2)= afla nr necunoscut 4×a=32 a:9=8 50:a=10 comleteaza in casuta cu a adevarat sau f fals 2+4×5=2+20 200-9×9+13=200-81+13 3×5:5+30=3×1+30

Answer 1

36:4x(40:8)+25=
36:4x5+25=
9x5+25=
45+25=70

12+4x(19-8x2)=
12+4x(19-16)=
12+4x3=
12+12=24

4xa=32
a=32:4
a=8

a:9=8
a=8x9
a=72

50:a=10
a=50:10
a=5

2+4x5=2+20
2+20=22 adevarat

200-9x9+13=200-81+13
200-81+13=132
132=132 adevarat

3x5:5+30=3x1+30
15:5+30=3+30
5+30=33
35=33 fals