科學記數法,將下列數值寫成10n 。,100 000 =,10 000 =,1 000 =,100 =,10 =,1 =,0.1 =,0.01 =,0.001 =,105,104,103,102,101,100,10-1,10-2,10-3,1 000 = 10 10 10 = 103,10 000 = 101000 = 10103 = 104,科學記數法,將下列數值寫成科學記數法 d 10n 。,(a) 400 000 = 4 100 000 = 4 105,400 000 = 40 10 000 = 40 104,此答案有何問題?,此數不可大於或等於10!,此數亦不可小於1!,n 是整數,1 d 10,科學記數法,(b) 25 000 = 2.5 10 000 = 2.5 104,(c) 5 034 = 5.034 1 000 = 5.034 103,(a) 400 000 = 4 100 000 = 4 105,將下列數值寫成科學記數法 d 10n 。,n 是整數,1 d 10,(a) 400 000 = 4 100 000 = 4 105,400 000,400 000 = 4
