五年级数学上册口算题带答案,帮帮我吧.

6.3/0.7= 3.5*0.1= 0.25*4=
0.21*0.3= 43/0.1= 7.05*100=
200*0.04= 12-1.2= 4.8/0.8=
1.3*0.5= 5.69/0.5= 0.73/7.3=
0.42/0.6= 5.5/11= 2.3*2=
5.7+4.3= 1/0.25= 0.1-0.09=
4.9/3.5= 3.5/3.5= 0.75/15=
答案：9 0.35 1
0.063 430 705
8 10.8 6
0.65 11.38 0.1
0.7 0.5 4.6
10 4 0.01
1.4 1 0.05