请大家帮我出50道小数乘除法的口算题

12*8=
12*25=
100*2=
2*5=
125*8=
100/4=
100/10=
125/25=
1000*2=
1000/8=
12*8=
12*25=
100*2=
2*5=
125*8=
100/4=
100/10=
125/25=
1000*2=
1000/8=
12*8=
12*25=
100*2=
2*5=
125*8=
100/4=
100/10=
125/25=
1000*2=
1000/8=
12*8=
12*25=
100*2=
2*5=
125*8=
100/4=
100/10=
125/25=
1000*2=
1000/8=
12*8=
12*25=
100*2=
2*5=
125*8=
100/4=
100/10=
125/25=
1000*2=
1000/8=
12*8=
12*25=
100*2=
2*5=
125*8=
100/4=
100/10=
125/25=
1000*2=
1000/8=

2.5*4
12/2.4
3.2*5
5.2*2
15.3/3
6/1.5
1.2*10
4.5/1.5
24/2.4
12.3*2
50.1*0.1
8.4/3
45/0.3
21/0.7
0.8/0.2
32/0.8
80*0.4
0.4*0.3
2.4/24
2.5*2.5
40*0.4
200/0.2
9.9/9.9
21/2.1
15*0.4
36/0.12
6.2*3
2.5*0.5
0.5*24
50.1*0.1
0.1*0.01
12.5*8
1.25*8
1/25
0.02/2
7/2
6*3.1
12/0.4
25/0.05
0.4*3.1
16*0.3
0.6*14
8.5/1.7
14/0.7
81/0.9
1.4/0.2
3.3/0.11
2/2.5
4.9/7
7/1.5

变电没加

12*8=
12*25=
100*2=
2*5=
125*8=
100/4=
100/10=
125/25=
1000*2=
1000/8=
12*8=
12*25=
100*2=
2*5=
125*8=
100/4=
100/10=
125/25=
1000*2=
1000/8=
12*8=
12*25=
100*2=
2*5=
125*8=
100/4=
100/10=
125/25=
1000*2=
1000/8=
12*8=
12*25=
100*2=
2*5=
125*8=
100/4=
100/10=
125/25=
1000*2=
1000/8=
12*8=
12*25=
100*2=
2*5=
125*8=
100/4=
100/10=
125/25=
1000*2=
1000/8=
12*8=
12*25=
100*2=
2*5=
125*8=
100/4=
100/10=
125/25=
1000*2=
1000/8=

0.1*0.1=0.010.1*0.2=0.020.2*0.2=0.040.3*0.6=0.180.5*0.6=0.30.8*0.5=0.40.5*0.2=0.10.9*0.8=0.720.9*0.7=0.630.9*0.6=0.540.9*0.5=0.450.9*0.4=0.360.9*0.3=0.270.9*0.2=0.180.9*0.1=0.090.8*0.8=0.640.8*0.7=0.5...