387+102= 4.8× = 18.6-5.6= 0.25×39×4=
9.6+0.1= + = 32×125%= ×8+ =
= :=27:x 25%x+x=
355+445=
+ =
3.14÷0.1=
52+32=
× ×0=
× =
5 ÷5.25=
× + × =
+ + =
+0.375= 2.5×(17×4)= 631÷89≈
0.32= ×÷×=
5.4×=
﹣ =
6×3.14=
÷ =
39%+28%=
1﹣16%﹣54%=