Write the following numbers in the expanded form: (i) 279404 (ii) 3006194 (iii)

Question

Write the following numbers in the expanded form:
(i) 279404
(ii) 3006194
(iii) 2806196
[3 Marks]

Answer:
:
Each option: 1 Mark
i) 279404 = 2,00,000 + 70,000 + 9,000 + 400 + 00 +4
=

2 \times 100000 + 7 \times 10000 + 9 \times 1000 + 4 \times 100 + 0 \times 10 + 4 \times 1

2 \times 10^{5} + 7 \times 10^{4} + 9 \times 10^{3} + 4 \times 10^{2} + 0 \times 10^{1} + 4 \times 10^{0}

ii) 3006194 = 30,00,000 + 0 + 0 + 6,000 + 100 + 90 + 4
=

3 \times 1000000 + 0 \times 100000 + 0 \times 10000 + 6 \times 1000 + 1 \times 100 + 9 \times 10 + 4 \times 1

3 \times 10^{6} + 0 \times 10^{5} + 0 \times 10^{4} + 6 \times 10^{3} + 1 \times 10^{2} + 9 \times 10^{1} + 4 \times 10^{0}

iii) 2806196 = 20,00,000 + 8,00,000 + 0 + 6,000 + 100 + 90 + 6
=

2 \times 1000000 + 8 \times 100000 + 0 \times 10000 + 6 \times 1000 + 1 \times 100 + 9 \times 10 + 6 \times 1

2 \times 10^{6} + 8 \times 10^{5} + 0 \times 10^{4} + 6 \times 10^{3} + 1 \times 10^{2} + 9 \times 10^{1} + 6 \times 10^{0}

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