標題:
數學題呀~請幫忙!!!!!!!!
發問:
7又47之18 , 7又32之13 , 7.4 , 7又21之8 (請詳細列式) 由大至小 ________大於_______大於_________大於_________(各化為小數後) _________大於___________大於__________大於____________ (請寫出化為小數的過程) 做完後,請寫上大至小)
最佳解答:
1.由於(小數取自三位) 7*18/47~7.383 7*13/32~7.410 7.4~7.400 7*8/21=7.381 所以 ____7.410____大於___7.400____大於____7.383_____大於____7.381_____(各化為小數後) ____7又32之13_______ _____大於____7.4_______大於_____7又47之18 _____大於_____7又21之8
其他解答:
7又21之8大於7又47之18 大於7.4大於7又32之13|||||7又47之18 =7+ 18/47 =7+ 0.383 (to 3 dec places) =7.383 7又32之13 =7+ 13/32 =7+ 0.565 (to 3 dec places) =7.565 7.4 =7.4 7又21之8 =7 + 8/21 =7+ 0.381 (to 3 dec places) =7.381 so, ____7.565___ 大於 __7.4__大於 ____7.383____大於___7.381____(各化為小數後) __7又32之13__大於__7.4__大於__7又47之18__大於__7又21之8__
數學題呀~請幫忙!!!!!!!!
發問:
7又47之18 , 7又32之13 , 7.4 , 7又21之8 (請詳細列式) 由大至小 ________大於_______大於_________大於_________(各化為小數後) _________大於___________大於__________大於____________ (請寫出化為小數的過程) 做完後,請寫上大至小)
最佳解答:
1.由於(小數取自三位) 7*18/47~7.383 7*13/32~7.410 7.4~7.400 7*8/21=7.381 所以 ____7.410____大於___7.400____大於____7.383_____大於____7.381_____(各化為小數後) ____7又32之13_______ _____大於____7.4_______大於_____7又47之18 _____大於_____7又21之8
其他解答:
7又21之8大於7又47之18 大於7.4大於7又32之13|||||7又47之18 =7+ 18/47 =7+ 0.383 (to 3 dec places) =7.383 7又32之13 =7+ 13/32 =7+ 0.565 (to 3 dec places) =7.565 7.4 =7.4 7又21之8 =7 + 8/21 =7+ 0.381 (to 3 dec places) =7.381 so, ____7.565___ 大於 __7.4__大於 ____7.383____大於___7.381____(各化為小數後) __7又32之13__大於__7.4__大於__7又47之18__大於__7又21之8__
此文章來自奇摩知識+如有不便請留言告知
文章標籤
全站熱搜
留言列表
