Question

if $L=2.331cm$, $B=2.1cm$, then L+B=

• A. $4.431cm$
• B. $4.43cm$
• C. $4.5cm$
• D. $4.2cm$

Answer 1

The correct option is A $4.431cm$

Step 1

$L=2.331cm=2.33$ (corrected to two decimal places) and $B=2.1cm$

Step 2

$L+B=2.33+2.1=4.43cm.=4.4cm$

(by the rule of addition the sum is expressed in minimum decimal places of terms in addition).