5．直接写出得数：
0 157927 157935 157941 157945 157951 157953 157957 157963 157965 157971 157977 157981 157983 157987 157993 157995 158001 158005 158007 158011 158013 158017 158019 158021 158022 158023 158025 158026 158027 158029 158031 158035 158037 158041 158043 158047 158053 158055 158061 158065 158067 158071 158077 158083 158085 158091 158095 158097 158103 158107 158113 158121 199269
| 5.78+2.16= | 18.25-3.3= | 3.2-0.02= | 25×8= | 2÷3= |
| 0.99×9+0.99= | 25×0.4= | 1×8+1×2= | 7÷2.1= | $\frac{2}{5}$×$\frac{2}{5}$÷$\frac{2}{5}$×$\frac{2}{5}$= |