3÷0.15= 0.16×5= 0.84÷2.1= 2.5×4+0.2=
0.8×0.4= 7.6x-x= 0.42= 4.3y+7y=
3.5×0.2=
10÷0.5=
6×0.25=
0.63÷+0.9=
0.99÷0.01=
1.2×4=
3.9×0.01=
10a+3a=
8.39+2.71= 7.8-6.07=
0.26×0.35= 2.415÷1.2≈ (得数保留两位小数)
12.5+0.5=
8.4÷4=
4.5÷0.9=
0.125×8÷0.125×8=
1.2×5=
0.25×8=
12.5÷2.5=
12×0.15-2×0.15=
0.22÷0.22=
4.2×0.4=
30.7×0.05=
8.77×10÷100=
0.42÷0.6= 10.3a-3a= 0.9÷0.01= 0.27+0.82=
0.21×0.3= 10-3²= 24×5= 25×4÷25×4=
0.63÷0.7= 9.1+3.5= 31.5÷10= 0.36÷0.09=
50×0.8= 1000×2.03= 10﹣4.9= 6.4÷4=