(1) Represent the following numbers in the scientific notation:
(i) 569430000000
(ii) 2000.57
(iii) 0.0000006000
(iv) 0.0009000002 Solution
(2) Write the following numbers in decimal form:
(i) 3.459 x 106
(ii) 5.678 104
(iii) 1.00005 x 10-5
(iv) 2.530009 x 10-7 Solution
(3) Represent the following numbers in scientific notation:
(i) (300000)2 x (20000)4
(ii) (0.000001)11 ÷ (0.005)3
(iii) {(0.00003)6 x (0.00005)4} ÷ {(0.009)3 x (0.05)2}
(4) Represent the following information in scientific notation:
(i) The world population is nearly 7000,000,000.
(ii) One light year means the distance 9460528400000000 km.
(iii) Mass of an electron is 0.000 000 000 000 000 000 000 000 000 00091093822 kg. Solution
(5) Simplify:
(i) (2.75 × 107) + (1.23 × 108)
(ii) (1.598×1017) – (4.58 ×1015)
(iii) (1.02 × 1010) × (1.20 × 10–3)
(iv) (8.41 × 104) ÷ (4.3 × 105) Solution
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