Question

doimea numerelor 40 50 68 72
zecimea numerelor 60 70 80 90
intreitul numerelor 12 9 3 33
indoitul numerelor 22 44 26 18
traimea numerelor 33 39 12 18
impartitul numerelor 8 12 16 40

Answer 1

doime ×2
zecime :10
:3
:2
:3
:4

Answer 2

a) 40:2=20 , 50:2=25 , 68:2=34 , 72:2=36 .
b) 60:10=6 , 70:10=7 , 80:10=8 , 90:10=9 .
c) 12×3=36 , 9×3=27 , 3×3=9 , 33×3=99 .
d) 22×2=44 , 44×2=88 , 26×2=52 , 18×2=36 .
e) 33:3=11 , 39:3=13 , 12:3=4 , 18:3=6 .
f) 8:4=2 , 12:4=3 , 16:4=4 , 40:4=10 .