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Solve the problem!

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... Read moreเวลาที่เราใช้ในชีวิตประจำวันบางครั้งอาจจะมีหน่วยวัดที่ต่างกัน เช่น ชั่วโมงและนาที ซึ่งการแปลงค่าระหว่างสองหน่วยนี้ถือเป็นพื้นฐานที่สำคัญมาก โดยเฉพาะถ้าคุณต้องเจอในโจทย์คณิตศาสตร์หรือสถานการณ์จริง เช่น การวางแผนเวลาหรือการกำหนดตารางเวลา ตัวอย่างโจทย์ "1.50 ชั่วโมง เท่ากับกี่นาที" คือการแปลงเวลาจากชั่วโมง (ชั่วโมงทศนิยม) ไปเป็นนาที วิธีคิดง่ายๆ คือให้เรารู้ว่า 1 ชั่วโมง มี 60 นาที ดังนั้น 1.50 ชั่วโมง = 1 ชั่วโมง + 0.50 ชั่วโมง = 1 x 60 นาที + 0.50 x 60 นาที = 60 นาที + 30 นาที = 90 นาที ดังนั้น คำตอบของโจทย์นี้คือ 90 นาที ซึ่งตรงกับตัวเลือก ข. 90 นาทีที่ให้มาในภาพ เมื่อเข้าใจหลักการนี้แล้ว คุณสามารถใช้วิธีนี้แปลงเวลาที่มีหน่วยเป็นทศนิยมชั่วโมงเป็นนาทีได้เองอย่างง่ายดาย ซึ่งช่วยให้การคำนวณเวลาทำได้ถูกต้องและรวดเร็วมากขึ้นในชีวิตประจำวัน จากประสบการณ์ส่วนตัว การให้เวลาแบบทศนิยม เช่น 1.25 ชั่วโมง หรือ 2.75 ชั่วโมงสะดวกสำหรับคำนวณและวางแผนเวลามาก เพราะเราสามารถแปลงเป็นนาทีโดยตรง ตามสูตรเดียวกันนี้ได้เลย รวมทั้งช่วยลดความสับสนเมื่อเราต้องจัดการกับเวลาที่ไม่เป็นจำนวนเต็มชั่วโมง ดังนั้น หากใครยังไม่คุ้นเคย อย่าลืมฝึกแปลงหน่วยจากชั่วโมงเป็นนาทีบ่อยๆ เพื่อความแม่นยำและรวดเร็วในการแก้ปัญหาต่างๆ ที่เกี่ยวข้องกับเวลาในอนาคต

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