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科目:小学数学 来源: 题型:
| 口算 300×6= | 300÷6= | 137-19= | 309÷3= | 280÷7= |
| 0÷60= | 20×50= | 55÷5= | 24×3= | 789×9≈ |
| 440÷9≈ | 359÷6≈ | 480÷4×2= | 16×5×80= |
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科目:小学数学 来源: 题型:
| 用简便方法计算下列各题. 35×78+78×64+78 | 8.17-(4.32-1.83)+101×73 |
| 100-99+98-97+96-95+…+4-3+2-1 | 7.12+5.4-7.12+5.4 |
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科目:小学数学 来源: 题型:
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科目:小学数学 来源: 题型:
| 直接写出得数. 0.56×3+4.44×3= | 2.85+3.7+2.15= | 1.587-0.62-0.38= |
| 2.5×5+3×2.5= | 7.6×1.88+2.4×1.88= | 2.5×8.25+1.75×2.5= |
| 1.25×5×8= | 1.968+3.567+2.433= |
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