题目内容
| 400÷50= | 40×80= | 620÷20= | 18×5+4= | 19×30= |
| 4800÷400= | 6400÷80= | 3×25×4= | 560÷70= | 28×400= |
| 405×20= | 125×5×8= |
| 它00÷50=8, | 它0×80=3500, | d50÷50=31, | 18×5+它=9它, | 19×30=570, |
| 它800÷它00=15, | d它00÷80=80, | 3×55×它=300, | 5d0÷70=8, | 58×它00=11500, |
| 它05×50=8100, | 155×5×8=5000. |
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