Find:

(i) 4.8 ÷ 10 (ii) 52.5 ÷ 10 (iii) 0.7 ÷ 10

(iv) 33.1 ÷ 10 (v) 272.23 ÷ 10 (vi) 0.56 ÷ 10

(vii) 3.97 ÷ 10

Write the following numbers in the usual form:

(i) $4.83\times {10}^7$ (ii) $3.02\times {10}^{-6}$

(iii) $4.5\times {10}^4$ (iv) $3\times {10}^{-8}$

(v) $1.0001\times {10}^9$ (vi) $5.8\times {10}^2$

(vii) $3.61492\times {10}^6$ (viii) $3.25\times {10}^{-7}$

Find:

(i) $1.3\times 10$ (ii) $36.8\times 10$ (iii) $153.7\times 10$

(iv) $168.07\times 10$ (v) $31.1\times 100$ (vi) $156.1\times 100$

(vii) $3.62\times 100$ (viii) $43.07\times 100$ (ix) $0.5\times 10$

(x) $0.08\times 10$ (xi) $0.9\times 100$ (xii) $0.03\times 1000$