灵活计算.
952-952÷17 | (-×) | (+)× |
1.28×5.37-2.8×0.537 | ×+ | ××(2009×42×85) |
直接写出下面各题的得数.
298+98= | 0.025×400= | 28÷= | 0.23= |
×= | 6.75-(1.9+)= | (+)×72= | ×31+31÷6= |
952-952÷17 | (-×) | (+)× |
1.28×5.37-2.8×0.537 | ×+ | ××(2009×42×85) |
298+98= | 0.025×400= | 28÷= | 0.23= |
×= | 6.75-(1.9+)= | (+)×72= | ×31+31÷6= |