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Question

Solve the given expression using suitable properties:
7×999

A
9363
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B
9693
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C
6993
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D
5993
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Solution

The correct option is C 6993
We can make use of distributive property of multiplication over subtraction to make calculations simpler.

This property states that:
a × ( b - c ) = a × b - a × c

7 × 999
= 7 × ( 1000 - 1 )
= 7 ×1000 - 7 × 1
= 7000 - 7
= 6993

Thus, option 'a' is the correct answer.

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