1. Perform the indicated operations and give answers with the proper number
of digits.
451 g - 15.46 g - 20.3 g
15.436 L + 5.3 L - 6.24 L - 8.177 L
48.2 m +3.82 m + 48.4394 m
148 g + 2.39 g + 0.0124 g
37 m × 2.340 m × 0.52 m
62.89 m 4.7 m
2. The distance between carbon atoms in a diamond is 154 pm. Convert this
distance to millimetres.
a
b
C
d
e
f
3. In a certain part of the country, there is an average of 710 people per
square mile and 0.72 internet services per person. What is the average
number of internet services in an area of 5.0 km²?