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Question -

Write the following numbers in the e×panded forms:
279404, 3006194, 2806196, 120719, 20068



Answer -

(i) 279404 = 2 × 100000 + 7 × 10000 + 9 × 1000 + 4 × 100 + 0 ×10 + 4
= 2 × 105 + 7 × 104 + 9 × 1032 +4 × 102 + 0 × 101 + 4 × 100
(ii) 3006194 = 3 × 1000000 + 0 × 100000 + 0 × 10000 + 6 × 1000 + 1 × 100 + 9 ×10 + 4
= 3 × 106 + 0 × 105 + 0 × 104 +6 × 103 + 1 × 102 + 9 × 101 +4 × 100
(iii) 2806196 = 2 × 1000000 + 8 × 100000 + 0 × 10000 + 6 × 1000 + 1 × 100 + 9 ×10 + 6
= 2 × 106 + 8 × 105 + 0 × 104 +6 × 103 + 1 × 102 + 9 × 101 +6 × 100
(iv) 120719 = 1 × 100000 + 2 × 10000 + 0 × 1000 + 7 × 100 + 1 × 10 + 9
= 1 × 105 + 2 × 104 + 0 × 103 +7 × 102 + 1 × 101 + 9 × 100
(v) 20068 = 2 × 10000 + 0 × 1000 + 0 × 100 + 6 × 10 + 8
= 2 × 104 + 0 × 103 + 0 × 102 +6 × 101 + 8 × 100

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