0.98÷0.7=
9.8
9.8
÷7         2.3÷0.15=
230
230
÷15.
分析:計(jì)算除數(shù)是小數(shù)的除法,首先根據(jù)商不變的性質(zhì),把除數(shù)轉(zhuǎn)化為整數(shù),除數(shù)的小數(shù)點(diǎn)向右移動幾位,被除數(shù)的小數(shù)點(diǎn)也向右移動相同的位數(shù),再根據(jù)除數(shù)是整數(shù)的除法進(jìn)行計(jì)算;據(jù)此解答.
解答:解:0.98÷0.7=(9.8)÷7;
2.3÷0.15=(230)÷15;
故答案為:9.8,230.
點(diǎn)評:此題主要考查商不變的性質(zhì)在小數(shù)除法里的實(shí)際應(yīng)用,注意除數(shù)的小數(shù)點(diǎn)向右移動幾位,被除數(shù)的小數(shù)點(diǎn)也向右移動相同的位數(shù)(位數(shù)不夠的用0補(bǔ)足).
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