02小數的乘法04被乘數乘數和積(選擇01)
年級 *
18 points
班級 *
18 points
座號 *
19 points
(1) 下面哪個算式的積最大?
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(2) 任何小數乘以1後,它的值會怎樣?
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(3) 9×0.4與0.4×9的關係是什麼?
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(4) 0.9×1.02的答案會比0.9大或小?
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(5) 大毛的錢是小毛的0.8倍,下面選項何者正確?
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(6) 0.999×0.9999的積會如何?
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(7) 0.772乘以下面哪一個數的積會最小?
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(8) 下面算式中,哪一個的積會大於被乘數? 
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(9) 24×0.9的答案會比24大或小?
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(10) 被乘數乘以一個大於1的小數,積會如何?
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(11) 31.41乘以下面哪一個數時,積會比31.41小?
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(12) 甲數乘以小於1的小數,積和甲數比較會如何?
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(13) 0.38×□<0.38,□中可以填入下面哪一個數?
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(14) A×B=0.4321,若將A變大10倍,B變大100倍,則所得的積是多少?
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(15) 由「12.45×3.□」的算式中(□代表一個數字),可知此算式的積會比12.45如何?
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