Question 1(iv)
Write the following numbers in the expanded form:
(iv) 1,20,719

(iv) 1,20,719 = $1,00,000+20,000+0+700+10+9$
$=1\times 100000+2\times 10000+0\times 1000+7\times 100+1\times 10+9\times 1$
$=1\times {10}^5+2\times {10}^4+0\times {10}^3+7\times {10}^2+1\times {10}^1+9\times {10}^0$