Question

Perform the following operation observing proper significant digits.

323.7 cm+ 100 cm+ 6.8 cm= _____.
A. 430.51 cm
B. 429.0 cm
C. 430.5 cm
D. 431 cm

Answer 1

430.5 cm

Step-by-step explanation:

first we detect point digt than

323+100+6

=429

now point digt

0.7+0.6

1.5

add both:-

429+1.5

=430.5