8.
口算 5.83-5.03= | 3500÷1000= | 6.5+1.5= | 180÷20×9= | 0.77+0.23= |
12-3.5-1.5= | 8-4.7= | 150÷5÷3= | 5.4+40= | 5.03×1000÷10= |
7.把4.985精确到十分位和百分位分别是( )
0 156764 156772 156778 156782 156788 156790 156794 156800 156802 156808 156814 156818 156820 156824 156830 156832 156838 156842 156844 156848 156850 156854 156856 156858 156859 156860 156862 156863 156864 156866 156868 156872 156874 156878 156880 156884 156890 156892 156898 156902 156904 156908 156914 156920 156922 156928 156932 156934 156940 156944 156950 156958 199269
A. | 5和5.0 | B. | 5和4.99 | C. | 5.0和4.99 |