西师版小学五册数学练习题(两三位数乘一位数04)

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西师版小学五册数学练习题(两三位数乘一位数04)

2021-04-29
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第5册练习题12，两三位数乘一位数学生学号估算下面各题（中间一步，以后熟练了，就可以不写出来。） 21×2≈ × = 32×2≈ × = 43×2≈ × = 54×2≈ × = 56×2≈ × = 57×2≈ × = 58×2≈ × = 59×2≈ × = 31×3≈ × = 42×3≈ × = 53×3≈ × = 64×3≈ × = 76×3≈ × = 87×3≈ × = 98×3≈ × = 99×3≈ × = 41×4≈ × = 52×4≈ × = 63×4≈ × = 74×4≈ × = 86×4≈ × = 97×4≈ × = 98×4≈ × = 99×4≈ × = 51×5≈ × = 62×5≈ × = 73×5≈ × = 84×5≈ × = 96×5≈ × = 97×5≈ × = 98×5≈ × = 99×5≈ × = 61×6≈ × = 62×6≈ × = 73×6≈ × = 74×6≈ × = 86×6≈ × = 97×6≈ × = 98×6≈ × = 99×6≈ × = 71×7≈ × = 82×7≈ × = 93×7≈ × = 94×7≈ × = 96×7≈ × = 97×7≈ × = 98×7≈ × = 99×7≈ × = 81×8≈ × = 82×8≈ × = 83×8≈ × = 84×8≈ × = 86×8≈ × = 87×8≈ × = 查看更多

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西师版小学五册数学练习题(两三位数乘一位数04)

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