12.列竖式计算:
3.7+6.05= | 8.25-4.9= | 36×45= |
305÷5= | 703-307= | 58+396= |
11.口算:
0 160133 160141 160147 160151 160157 160159 160163 160169 160171 160177 160183 160187 160189 160193 160199 160201 160207 160211 160213 160217 160219 160223 160225 160227 160228 160229 160231 160232 160233 160235 160237 160241 160243 160247 160249 160253 160259 160261 160267 160271 160273 160277 160283 160289 160291 160297 160301 160303 160309 160313 160319 160327 199269
6-2.4= | 5.3+3.5= | 1-$\frac{1}{4}$= | 0×7= |
20×13= | 24×30= | 640÷9= | 300+3000= |