• 这样的换算题怎么做

1.19x10的-7次方吨 =1.19x10的-4次方 kg
125mg=0.125g=1.25x10的-4次方kg
0.13g=1.3x10的-4次方kg
1.1°=60′,1′=60″ 2.举例说明:例1:填空(1)34.5°= ( )°()′ (2)112.27°=()°()′()″ 解:解:(1)34.5°=34°+0.5°=34°+0.5×60″=34°+30′=34°30′ (2)112.27°=112°+0.27×60′=112°+16.2′=112°+16′+0.2×60″=112°16′12″ 例2,把下列结果化程度(1)72°36′ (2)37°14′24″ 解:(1)72°36′ =72°+36′ =72°+(36÷60)° =72°+0.6° =72.6° (2)37°14′24″ =37°+14′+24″ =37°+14′+(24÷60)′ =37°+14′+0.4′ =37°+14.4′ =37°+(14.4′÷60)° =37°+0.24° 37.24°
1.19x10的-7次方吨 =1.19x10的-4次方 kg
125mg=0.125g=1.25x10的-4次方kg
0.13g=1.3x10的-4次方kg
1.1°=60′,1′=60″ 2.举例说明:例1:填空(1)34.5°= ( )°()′ (2)112.27°=()°()′()″ 解:解:(1)34.5°=34°+0.5°=34°+0.5×60″=34°+30′=34°30′ (2)112.27°=112°+0.27×60′=112°+16.2′=112°+16′+0.2×60″=112°16′12″ 例2,把下列结果化程度(1)72°36′ (2)37°14′24″ 解:(1)72°36′ =72°+36′ =72°+(36÷60)° =72°+0.6° =72.6° (2)37°14′24″ =37°+14′+24″ =37°+14′+(24÷60)′ =37°+14′+0.4′ =37°+14.4′ =37°+(14.4′÷60)° =37°+0.24° 37.24°


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