Write the numeral whose expanded form is given below:
(i) $6\times {10}^4+3\times {10}^3+0\times {10}^2+7\times {10}^1+8\times {10}^0$
(ii) $9\times {10}^6+7\times {10}^5+0\times {10}^4+3\times {10}^3+4\times {10}^2+6\times {10}^1+2\times {10}^0$
(iii) $8\times {10}^5+6\times {10}^4+4\times {10}^3+2\times {10}^2+9\times {10}^1+6\times {10}^0$

Find the number from each of the following expanded forms:

(a) 8 × 10⁴ + 6 × 10³ + 0 × 10² + 4 × 10¹ + 5 × 10⁰

(b) 4 × 10⁵ + 5 × 10³ + 3 × 10² + 2 × 10⁰

(c) 3 × 10⁴ + 7 × 10² + 5 × 10⁰

(d) 9 × 10⁵ + 2 × 10² + 3 × 10¹

Question 61

$876543=8\times {10}^5+7\times {10}^4+6\times {10}^3+5\times {10}^2+4\times {10}^1+3\times {10}^0$

Express the following standard form.

(a) 5 × 10⁶ + 4 × 10⁵ + 2 × 10³ + 9 × 10² + 6 × 10⁰

(b) 4 × 10⁵ + 8 ×10³ + 7 × 10¹