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Question

Write the following expression as a statement:
( 21
÷ 7 ) - 2

A
2 less than 21 divided by 7.
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B
21 divided by sum of 7 and 2.
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C
Subtract 7 from 21 then divide the difference by 2.
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D
21 minus 7 whole divided by 2.
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Solution

The correct option is A 2 less than 21 divided by 7.
Converting each of the given statements into mathematical expressions, we get:

(a) 2 less than 21 divided by 7
=
(21 ÷ 7) - 2

(b) 21 divided by sum of 7 and 2
= 21 ÷ (7 + 2)


(c) Subtract 7 from 21 then divide the difference by 2
=
(21 - 7) ÷ 2

(d) 21 minus 7 whole divided by 2
=
(21 - 7) ÷ 2

Therefore, the matching statement for the given expression is:


"2 less than 21 divided by 7"


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