题目内容
| 口算. 450×3= | 280×40= | 90×120= |
| 35×700= | 5×650= | 605×60= |
| 102×70= | 920×40= |
| 450×3=1350, | 280×40=11200, | 90×120=10800, |
| 35×700=24500, | 5×650=3250, | 605×60=36300, |
| 102×70=7140, | 920×40=36800. |
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题目内容
| 口算. 450×3= | 280×40= | 90×120= |
| 35×700= | 5×650= | 605×60= |
| 102×70= | 920×40= |
| 450×3=1350, | 280×40=11200, | 90×120=10800, |
| 35×700=24500, | 5×650=3250, | 605×60=36300, |
| 102×70=7140, | 920×40=36800. |