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วิชาคณิตศาสตร ชั้นประถมศึกษาปที่ 4
เรืองโจทยปญหาการบวก ลบ คณ หารระคน
่
ู
1. แสนดไดรับเงินโบนัส 6,534 บาท แสนสวยไดรับเงินโบนัส 5,879 บาท แสนหวานไดรับเงินโบนัสนอยกวาแสนดีอยู
ี
ั
2310 บาท อยากทราบวา เงินโบนัสของทงสามคนเปนเทาใด
้
ประโยคสัญลักษณ ..........................................................................................................................................................
วิธีทํา
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ตอบ .................................................................................................................................................................................
ํ
ี
ื
่
2. แนนจายคาไฟฟาเฉลี่ยเดือนละ 1,179 บาท จายคาน้าประปาเฉลยเดอนละ 208 บาท ใน 1 ป แนนจายคาไฟฟา
่
และคาน้าประปาเปนเงินกีบาท
ํ
ประโยคสัญลักษณ ..........................................................................................................................................................
วิธีทํา
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