【題目】用小數(shù)表示下面的涂色部分。
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【答案】0.5 2.60 0.34 1.2
【解析】
第1圖,把正方形平均分成10份,取其中的5份,即是0.5,;第2圖,有2個正方形全部涂色,還有1個正方形平均分成100份,取其中的60份,這60份用小數(shù)表示是0.60;第3圖,把正方形平均分成100份,取其中的34份,用小數(shù)表示是0.34;第4圖,左邊的圓全部涂色,右邊的圓平均分成10份,涂色的占其中的2份,這2份用小數(shù)表示是0.2。據(jù)此來填空。
根據(jù)分析,=0.5;2和0.60合起來是2.60;=0.34;1和0.2合起來是1.2。
故答案為:0.5 ;2.60 ; 0.34 ; 1.2
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