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แบบทดสอบกอนฝก
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                                           วิชาคณิตศาสตร ชั้นประถมศึกษาปที่ 4


                                         เรืองโจทยปญหาการบวก ลบ คณ หารระคน
                                           ่
                                                                       ู
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                       
              1. แสนดไดรับเงินโบนัส 6,534 บาท แสนสวยไดรับเงินโบนัส 5,879 บาท แสนหวานไดรับเงินโบนัสนอยกวาแสนดีอยู
                                                     
                     ี
                                                 ั
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              2310 บาท  อยากทราบวา เงินโบนัสของทงสามคนเปนเทาใด
                                                 ้

              ประโยคสัญลักษณ ..........................................................................................................................................................
                              
              วิธีทํา
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              ตอบ .................................................................................................................................................................................



                                                           ํ
                                                                     ี
                                                      
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                                                                        ื
                                                                     ่
              2. แนนจายคาไฟฟาเฉลี่ยเดือนละ 1,179 บาท จายคาน้าประปาเฉลยเดอนละ 208 บาท ใน 1 ป แนนจายคาไฟฟา
                                   ่
              และคาน้าประปาเปนเงินกีบาท
                   
                     ํ

              ประโยคสัญลักษณ ..........................................................................................................................................................
                              
              วิธีทํา
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