4x+2x=9.6
( )=9.6
( )=( )
x=( )
3x+1.5=2.1
3x+1.5( )=( )
3x =( )
3x÷3=( )
0.83×3.4+6.6×0.83
1.25×6.4×2.5
7.4×8.8+7.4×1.2
8.5×[(12.6+2.4)÷1.5]
3.6÷0.1=
7.2×0.3=
0.45+0.55=
0.56÷0.7=
0.07×0.8=
9.2-1.2=
0.16×0.5=
80.3÷20.02≈
7.9×0.97.9 12.3×112.3÷1 9.6÷1.19.6