
5B 专题16 消去法解题
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Mathematics
3rd Grade
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9 questions
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1.
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1 min • 1 pt
有红、黄、蓝、绿4种球,红、黄、蓝总数是131个,红、黄、绿球总数134个,红、黄球比蓝、绿球少1个,4种球的总数是多少个?
2.
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1 min • 1 pt
4袋面粉与6袋大米共重196千克,7袋面粉与3袋大米共重208千克,
面粉与大米每袋各重多少千克?
答:面粉,大米
3.
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1 min • 1 pt
2千克巧克力和6千克奶糖卖116元;2千克巧克力和3千克奶糖共卖83元,
两种糖单价各是多少元?
答:奶糖,巧克力
4.
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1 min • 1 pt
甲、乙两人加工零件,甲做4小时,乙做6小时,两人共做196个,甲做6小时,乙做4小时,则共做204个,甲、乙1小时共做多少个?
答:甲,乙
5.
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1 min • 1 pt
甲、乙两人合作,甲做8小时,乙做3小时共做136个零件,如果甲做3小时,乙做8小时则共做106个零件,甲、乙合作一小时共做多少个零件?甲、乙1小时各做多少个零件?
答:总共,甲,乙
6.
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1 min • 1 pt
3头牛和8只羊每天共吃草93千克,5头牛和15只羊每天共吃青草165千克,
1头牛比1只羊每天多吃青草多少千克?
7.
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1 min • 1 pt
王老师带30元钱去文具店买钢笔和圆珠笔,他买3支钢笔和5支圆珠笔,剩下的钱若再买2支圆珠笔还差4角,若再买2支钢笔还差2元,每支钢笔多少元?
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