(1)102=______,103=______,104=______.
(2)已知3.2142=10.33,則0.32142=______,2=103 300;
(3)已知4.73=103.8,則473=______,3=-0.103 8.
解:(1)102=100,103=1000,104=10000;
(2)已知3.2142=10.33,則0.32142=0.1033,(321.4)2=103300;
(3)已知4.73=103.8,則473=103800,(-0.47)3=-0.1038.
故答案為:(1)100;1000;10000;(2)0.1033;321.4;(3)103800;-0.47
分析:(1)利用乘方的意義計(jì)算即可得到結(jié)果;
(2)根據(jù)底數(shù)小數(shù)點(diǎn)向左移動(dòng)一位,結(jié)果小數(shù)點(diǎn)向左移動(dòng)2位;結(jié)果小數(shù)點(diǎn)向右移動(dòng)4位,底數(shù)小數(shù)點(diǎn)向右移動(dòng)2位;
(3)根據(jù)底數(shù)小數(shù)點(diǎn)向左移動(dòng)一位,結(jié)果小數(shù)點(diǎn)向左移動(dòng)3位;結(jié)果小數(shù)點(diǎn)向左移動(dòng)3位,底數(shù)小數(shù)點(diǎn)向左移動(dòng)1位.
點(diǎn)評(píng):此題考查了有理數(shù)的乘方,熟練掌握乘方的意義是解本題的關(guān)鍵.