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Question

Write in an expanded form? Place commas correctly for each of the numbers.

(a) 74836
(b) 574021
(c) 8907010
(d) 99999999
(e) 100001
(f) 545

[3 MARKS]

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Solution

(a) 74,836 = 7 × 10000 + 4 × 1000 + 8 × 100 + 3 ×10 + 6 × 1

(b) 5,74,021 = 5 × 100000 + 7 × 10000 + 4 × 1000 + 2× 10 + 1×1

(c) 89,07,010 = 8 × 1000000 + 9 × 100000 + 7 × 1000 + 10 × 1

(d) 9,99,99,999 = 9×10000000 + 9×1000000 + 9×100000 + 9×10000 + 9×1000 + 9×100 + 9×10 + 9× 1

(e) 1,00,001 = 1×100000 + 0×10000 + 0×1000 + 0×100 + 0×10+1× 1

(f) 545 = 5×100 + 4×10 + 5 × 1

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