7.直接写出得数:
0 161110 161118 161124 161128 161134 161136 161140 161146 161148 161154 161160 161164 161166 161170 161176 161178 161184 161188 161190 161194 161196 161200 161202 161204 161205 161206 161208 161209 161210 161212 161214 161218 161220 161224 161226 161230 161236 161238 161244 161248 161250 161254 161260 161266 161268 161274 161278 161280 161286 161290 161296 161304 199269
| 4×0.25= | 9.9+0.1= | 0.7÷0.1= | 6-0.23-0.77= |
| 3.65×2.78×0= | 54×0.01= | 4.62+4.62×99= | 1.1+9.9= |