北师版小学数学四年级口算练习
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四年级口算
练习题
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1
200×30, 51?3, 21×3, 42×4, 60?60, 15×6, 63,7, 80?5, 120?60, 230×20, 240?80, 25×4, 130×3, 100?50, 14×5, 60×50, 1200?20, 480?80, 150?3, 250?50, 30×60, 260×2, 270?90, 1800?60, 75,26, 50?10, 25×40, 21×40, 360?40, 1800?90, 35×20, 500?50, 5×17, 15×80, 280?70, 48?3, 300×6, 34×2, 90×6, 15×8, 15×5, 1400×5, 23×30, 490?70, 12×8,
92?2, 93?31, 48，16, 150×4, 18×4, 11×40, 560?80, 74?37, 360?60, 72?24, 210?30, 76?19, 3200×2, 36×20, 18×3, 24×20, 4×250, 6×800, 70?14, 120?20, 110×8, 28×3, 160×2, 250?50, 6×13, 480?2, 130×5, 650?5, 50×60, 400?8, 900?6, 48?4, 420?3, 10×47, 76?19, 3200×2, 91?13, 18×3, 24×20, 450?50, 6×800, 70?14, 12×20, 110×8, 28×3, 18×2, 250?50, 6×13, 84?3, 130×5, 650?5, 1900×5, 400?8, 900?6, 720?4, 420?3, 10×47, 50×70, 90,15, 91?13, 480?80, 3×24, 450?50, 26×30, 92?46, 12×20,
18×2, 250?50, 90,15, 84?3, 130×5, 3×24, 1900×5, 400?8, 92?46, 720?4, 420?3, 8.1?9, 50×70, 90,15, 2.5×4, 480?80, 3×24, 6,0.025, 26×30, 92?46, 3.6，6.3, 93?31, 48，16, 0.05×4, 18×4, 11×40, 3.5×0, 74?37, 360?60, 0?3.5, 210?30, 160×2, 0.9×0.3, 36×20, 480?2, 1×0.06, 4×250, 50×60, 9×0.5, 120?20, 48?4, 1.25×8, 160×2, 76?19, 2.6×3, 480?2, 18×3, 4.1×2, 50×60, 6×800, 0.35×0.2, 48?4, 110×8, 7.5×0.1, 76?19, 250?50, 0.9×0.3, 18×3, 130×5, 1×0.06, 6×800, 400?8, 9×0.5, 110×8, 420?3, 1.25×8,
0.2×0.4, 0.001?0.1, 0?3.89, 8.2，1.8, 1.4?0.7, 3.52?1, 100,35.22, 3.6?0.06, 6.4?4, 2.5×0.4, 5.6?0.8, 1.5?0.3, 2.4×5, 5.6?1.4, 1.8×5, 0.22×4, 0.48?0.8, 7.2?0.9, 0.9,0.52, 4.4?0.11, 2.2×6, 3.99×1, 4.2×3 , 8.4?0.4, 0×3.52, 3.2×0.4, 4.5?0.9, 2.5?5, 0.3?0.01, 2.5×4, 8.4?7, 4?0.5, 12.5×4, 0.34?17, 5.1?0.17, 0.3?0.1, 2.5?0.5, 0.28?1.4, 4.5×2= 8.4?0.7, 0.9?0.45, 7.8+0.22= 0.34?0.17, 9.6?16, 3.4×0.4= 30.4?4, 1?0.01 , 12.6,0.9= 1.2×6, 0.01?1, 48，16, 0.72?0.6, 7.5?1.5, 11×40, 2.6?1.3, 0.81?9,
0.6×0.3, 3?0.5,
0?3.65, 10?25,
7.82?1 , 4.8?0.16,
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