(i) Add `73.24 mL` and `20.3 mL` (ii) Subtract `21.2342 g` foru `27.87 g` Strategy:
Channel: Doubtnut
Date: 23/08/2020

(i) Add `73.24 mL` and `20.3 mL` (ii) Subtract `21.2342 g` foru `27.87 g` Strategy: We first ensure that the quatities  to be added or subtracted  are expressed in the same  units. We carry  out the adition  or subtraction. Then we follow  rule 1 to express  the answer to the  correct number  of significant figures, i.e., in the final  answer, the number  of right of the decimal  point should  be equal  to the number  of digits  after  the decimal point.