650+200= 78-3.2= 18×0.4= 2÷0.05=
+= 1-= ×= ÷=
5.04+4.6=
× =
16×30%=
﹣ =
10× ÷10× =
3.2× =
5÷0.1=
0.23=
=
①612÷18+780÷30
②2.5×32×12.5
③5÷(0.5+)×
④
⑤()
⑥16×+8×+12÷25
×12= -= 100×50%= 0.32= 5﹣0.99=
8﹣5.3= + = 0.2×0.01= 2÷ = 0.82﹣0.08=
1﹣ = 20×3.5= × = ÷0.2= 0.04×50=
341-29= 5.7+1.24= -0.25= × =
3.2÷80%= ÷ = ×0+ = 12.5×8÷12.5×8=