I Perform the following calculations, and express the
results in the correct units and with the proper num-
ber of significant figures. Note, in problems with multi-
ple steps, it is better to perform the entire calculation
and then round to significant figures.
a. (0.054 kg + 1.33 kg) x 5.4 m2
b. 67.35 cm2 + (1.401 cm -0.399 cm)
c. 4.198 kg X (1019 m2 - 40 m²) + (54.2 s X 31.3 s)
d. 3.14159 m X (4.17 m + 2.150 m)
e. 690 000 m - (5.022 h - 4.31 h)
f. (6.23 cm + 3.111 cm -0.05 cm) x 14.99 cm