Expanded form — task. Mathematics CBSE, Class 7 New.

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1. Which of the following is equivalent to 639?

$600 + 30 + 9 \times 10$
$6 + 3 + 9$
$600 + 30 + 9$

2. Which of the following is equivalent to 51086?

$50000 + 1000 + 800 + 60$
$50000 + 1000 + 80 + 6$
$5 + 1 + 0 + 8 + 6$

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