题目内容
先用计算器算出每组前三个算式，再根据规律直接写出后四个算式的得数．
(1)9999
×2=________9999
×3=________9999
×4=________9999
×5=________9999
×6=________9999
×7=________9999
×8=________(2)142857
×2=________142857
×3=________142857
×4=________142857
×5=________142857
×6=________142857
×7=________142857
×8=________
答案：19998,29997,39996,49995,59994,69993,79992;285714,428571,571428,714285,857142,999999,1142856
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先用计算器算出每组前三个算式，再根据规律直接写出后四个算式的得数．
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(1)99.99 ×0.2=________99.99 ×0.3=________99.99 ×0.4=________99.99 ×0.5=________99.99 ×0.6=________99.99 ×0.7=________99.99 ×0.8=________ |
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先用计算器算出每组前三个算式，再根据规律直接写出后四个算式的得数．
|
(1)99.99 ×0.2=________99.99 ×0.3=________99.99 ×0.4=________99.99 ×0.5=________99.99 ×0.6=________99.99 ×0.7=________99.99 ×0.8=________ |
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