摘要:直接写得数. 30×32= 25×4= 60×70= 21×11= 3.7+1.6= 735÷7= 315÷3= 630÷7= 270÷9= 1.5-0.8=
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| 直接写得数. 30×8= |
600×4= |
50×3= |
21×2= |
24×2= |
| 6×500= | 900×2= | 23×2= | 32+400= | 140×7= |
| 20÷3= | 32÷4+13= | 20×6+13= | (5+25)×4= | 30×2×5= |