Question

Scrieți în forma desfășurată( în baza 10)numerele 5,42,23,897,100000,30040050,184,abc,unde a,b,c sunt cifre a = 0.

Answer 1

5 =  5 · 10⁰ = 5 · 1

42 = 4 · 10¹ + 2 ·10⁰ = 40 + 2

23 = 2 · 10¹ + 3 ·10⁰ = 20 + 3

897 = 8 · 10² + 9· 10¹ + 7 ·10⁰ = 800 + 90 + 7

100000 =  1 · 10⁵ + 0· 10⁴ + 0 ·10³ + 0 · 10² + 0· 10¹ + 0 ·10⁰ = 100000

30040050 = 3  · 10⁷ + 0· 10⁶ + 0 ·10⁵ + 4 · 10⁴ + 0 ·10³ + 0 · 10² + 5· 10¹ + 0 ·10⁰  

= 30000000 + 0 + 0 + 40000 + 0 + 0 + 50 + 0

184 = 1 · 10² + 8· 10¹ + 4 ·10⁰  = 100 + 80 + 4

Answer 2

5 = 5 × 1 = 5 × 10^0
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42 = 40 + 2 = 4 × 10^1 + 2 × 10^0
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23 = 20 + 3 = 2 × 10^1 + 3 × 10^0
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897 = 800 + 90 + 7 = 8 × 10^2 + 9 × 10^1 + 7 × 10^0
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100 000 = 1 × 10^5
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30 040 050 =

30 000 000 + 40 000 + 50 =

3 × 10^7 + 4 × 10^4 + 5 × 10^1
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184 = 100 + 80 + 4 = 1 × 10^2 + 8 × 10^1 + 4 × 10^0
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abc = 100 × a + 10 × b + c = a × 10^2 + b × 10^1 + c × 10^0