The general form of $129$ is

100 \times 1 + 10 \times 2 + 9 \times 1

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120 \times 1 + 9 \times 1

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100 \times 1 + 30 \times 1 - 1

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All of the above

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Solution

The correct option is A $100 \times 1 + 10 \times 2 + 9 \times 1$
The general form of any three digits number will be, $a b c = a \times 100 + b \times 10 + c$
Therefore, $129$ can be written as $1 \times 100 + 2 \times 10 + 9 \times 1$

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The general form of 456 is

A. (4 × 100) + (5 × 10) + (6 × 1)

B. (4 × 100) + (6 × 10) + (5 × 1)

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Question 4

The expanded form of the number 9578 is
(A) 9 × 10000 + 5 × 1000 + 7 × 10 + 8 × 1
(B) 9 × 1000 + 5 × 100 + 7 × 10 + 8 × 1
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(D) 9 × 100 + 5 × 100 + 7 × 10 + 8 × 1

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The general form of 129 is

The correct option is A 100×1+10×2+9×1The general form of any three digits number will be, abc=a×100+b×10+cTherefore, 129 can be written as 1×100+2×10+9×1

The general form of $129$ is

The correct option is A $100 \times 1 + 10 \times 2 + 9 \times 1$
The general form of any three digits number will be, $a b c = a \times 100 + b \times 10 + c$
Therefore, $129$ can be written as $1 \times 100 + 2 \times 10 + 9 \times 1$