youra 約4年以前 1. 5⁶ ( 5x5x5x5x5x5 = 15.625 ) 2. 2⁵ ( 2x2x2x2x2 = 32 ) 3. 1/8² = 1/64 4. ( 36 - 16 ) : 2 = 20 : 2 = 10 5. √300 = √100x3 = √100 x √3 = 10√3 留言