Solve the following problems, giving the answers to the proper number of sig figs.
a. 18.458m + 2.53m =
b. 8.4400m + 13.3m =
c. 8.46 x 10^2 x 2.62 x 10^5 =
d. 127.6g / 5.50mL =
e. 277 x 5.38 / 12.3=
f. 347.6m + 1.87 =
g. 0.02770 x 15.700 =
h. 3.07 x 10^-2 x 8.44 x 10^-6=
i. 0.1372 / 81.4 =
j. (7.31x10^4) + (3.23x10^3) =
k. 4.36dm x 2.34dm x 7.35dm=
l. (8.54x10^-3) - (3.41x10^-4)=
