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With due regard to significant figures, ...

With due regard to significant figures, subtract
(a) `0.35` from 7 , (b) `0.65` from 7
( c ) `0.35` from `7.0` ,(d) `0.65` from `7.0`

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The correct Answer is:
(a) `7`; (b). ` 6` ; ( c ) `6.6` ; (d) `6.4`
(a) `7` , (b) `6)` , ( c ) `6.6` , (d) `6.4)`
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