16.递等式计算
| 144÷4×12 | 36×25-840 | (140+60)×(26-8) | 7000-15×15÷25 |
14.递等式计算.
0 159769 159777 159783 159787 159793 159795 159799 159805 159807 159813 159819 159823 159825 159829 159835 159837 159843 159847 159849 159853 159855 159859 159861 159863 159864 159865 159867 159868 159869 159871 159873 159877 159879 159883 159885 159889 159895 159897 159903 159907 159909 159913 159919 159925 159927 159933 159937 159939 159945 159949 159955 159963 199269
| 451+123×2 | (801-15)×3 | 1080-9×3 | 4512×0+998 |