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Write the numeral for the numbers given in the expanded form.
a. $5 \times 10^5 + 2 \times 10^4 + 1 \times 10^3 + 7 \times 10^2 + 6 \times 10^1 + 8 \times 10^0$
b. $9 \times 10^4 + 2\times 10^3 + 8\times 10^2 + 5\times 10^1 + 4\times 10^0$
Given :
The given expressions are,
a. $5 \times 10^5 + 2 \times 10^4 + 1 \times 10^3 + 7 \times 10^2 + 6 \times 10^1 + 8 \times 10^0$
b. $9 \times 10^4 + 2\times 10^3 + 8\times 10^2 + 5\times 10^1 + 4\times 10^0$
To do :
We have to write the numerals for the given expansion forms.
Solution :
a. $5 \times 10^5 + 2 \times 10^4 + 1 \times 10^3 + 7 \times 10^2 + 6 \times 10^1 + 8 \times 10^0$
$= 5 \times 100000 + 2 \times 10000 + 1 \times 1000 + 7 \times 100 + 6 \times 10 + 8 \times 1$
$= 500000+20000+1000+700+60+8$
$= 521768$.
Therefore the numeral is 521768.
b. $9 \times 10^4 + 2\times 10^3 + 8\times 10^2 + 5\times 10^1 + 4\times 10^0$
$=9 \times 10000 + 2\times 1000 + 8\times 100 + 5\times 10 + 4\times 1$
$= 90000+2000+800+50+4$
$= 92854$.
Therefore, the numeral is 92854.