= 0.3÷0.4= 25×4%= +75%= ()×6=
6×÷2= ÷2÷= 11×-=
x+50%x=7.5
468+199=
0.25×4=
2.4÷40%=
=
0.89+0.1=
15.7-5.07=
42+62=
10-2÷25%=
0.4m3:25L(求比值)=
0.1×0.4= 16÷0.8= 720﹣180= 0.65+9.35=
:= ×0= ÷51= 0.01×99=
3.14×20=
2×=
1-=
()×9=
72÷=
1.5×100=
1.25×8=
0.8×99+0.8=
35÷0.1= 3.7+2.53= 700÷35= 75×20=
×15= ÷ = - = + =
3,6,9,15,24,,63,