(A)4.03X 10 (B)4.03×10 查看更多

 

題目列表(包括答案和解析)

用科學(xué)記數(shù)法表示-0.00103=
-1.03×10-3
-1.03×10-3

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把下列各數(shù)分別填入適當(dāng)?shù)募蟽?nèi):-3.14,0.5,-
49
π
6
,0,3
-125
,2-
3
3
10
,6.03,
(-3)2
,-4.565565556…
 (兩個(gè)6之間依次多一個(gè)5)
自然數(shù)集合:{                                                           };
整數(shù)集合:{                                                             };
有理數(shù)集合:{                                                           };
無(wú)理數(shù)集合:{                                                    }.

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把下列各數(shù)分別填入適當(dāng)?shù)募蟽?nèi):-3.14,0.5,-
49
,
π
6
,0,3
-125
2-
3
3
,
10
,6.03,
(-3)2
,-4.565565556…
 (兩個(gè)6之間依次多一個(gè)5)
自然數(shù)集合:{                                                           };
整數(shù)集合:{                                                             };
有理數(shù)集合:{                                                           };
無(wú)理數(shù)集合:{                                                    }.

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0.000 008 03用科學(xué)記數(shù)法可表示為


  1. A.
    8.03×10-5
  2. B.
    8.03×10-4
  3. C.
    8.03×10-7
  4. D.
    8.03×10-6

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小聰在用科學(xué)記數(shù)法記錄一個(gè)較小的數(shù)時(shí),多數(shù)了2位,結(jié)果錯(cuò)誤地記成4.03×10-8,正確的結(jié)果應(yīng)是


  1. A.
    4.03×106
  2. B.
    4.03×10-6
  3. C.
    4.03×1010
  4. D.
    4.03×10-10

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