一、口算。
4.25÷0.05 =
32×0.02 =
18.2 - 6.5 - 4.5 =
2.6×0.4 =
7.3 + 1.05 =
7.2 - 1.2 + 6.7 =
5.6÷0.07 =
0.37 - 0.3 =
0.25×17.5×4 =
0.99 + 3.8 =
0.08÷0.2 =
(8.1 - 0.1)÷0.1 =
99×0.25 =
0.12 + 1.88 =
6.3÷2.5÷0.4 =
8.4÷0.4 =
3.6 - 1.72 =
4×(1.5 + 0.25) =
0.9 - 0.65 =
1.7×0.6 =
6.5 + (7.8 + 3.5) =
14×0.3 =
0.73 + 0.37 =
9.63×101 - 9.63 =
1.5 + 4.5 =
0.1÷0.5 =
1÷0.125×0.875 =
100÷0.01 =
3 - 1.25 =
(0.96 - 0.48)÷12 =

85 0.64 7.2
1.04 8.35 12.7
80 0.07 17.5
4.79 0.4 80
24.75 2 6.3
21 1.88 7
0.25 1.02 17.8
4.2 1.1 963
6 0.2 7
10000 1.75 0.04

二、计算下面各题，怎样简便就怎样计算。
7.9×0.3 + 0.26×5
26×[1÷(2.3 - 2.25)]
18.27 - (5.96 - 1.73) - 4.04

3.67 520 10