P 1.4 Perform the following addition and subtraction problems with the following measured quantities. Assume ambiguous, place-holding zeros do not indicate a degree of precision. a. 8.45 g + 12 g + 459.01 g = 479 b. 323.98 g – 221.98 g = g c. 34.986 mL – 21 mL = mL d. 34,000 kg + 567 kg = kg = g e. 6.04 m + 91 cm + 45 mm = m = cm f. 6.04 m + 91 cm + 51 mm = m = mm
P 1.4 Perform the following addition and subtraction problems with the following measured quantities. Assume ambiguous, place-holding zeros do not indicate a degree of precision.
a. 8.45 g + 12 g + 459.01 g = 479
b. 323.98 g – 221.98 g = g
c. 34.986 mL – 21 mL = mL
d. 34,000 kg + 567 kg = kg = g
e. 6.04 m + 91 cm + 45 mm = m = cm
f. 6.04 m + 91 cm + 51 mm = m = mm
P 1.6 Perform the following multiplication problems, reporting your answer with the correct number of significant figures.
(a) (56.03 cm) x (1.000 cm) x (3518 cm) = cm3
(b) (56.03 cm) x (1.00 cm) x (3518 cm) = cm3
(c) (56.03 cm) x (1.0 cm) x (3518 cm) = cm3
P 1.7 Perform the following multiplication and division problems with the following measured quantities. You cannot determine the number of significant figures in a number with ambiguous zeros and so there is no one correct answer for problems with ambiguous zeros.
a. (7.34 cm) x (0.0045 cm) x (124 cm) = cm3
b.
c.
d. 8.95 m x 200 m = m2
e. (13.98 cm) x (12.00 mm) = cm2
P 1.8 Write the answer correctly for the following problems.
a.
b. (45.900 cm2) x (9.00 cm) = cm3
c. (3.14 cm) x (0.45 cm) x (1.67 cm) = cm3
d. 6700 m + 800 m + 12.95 m = m
e. 4.9054 kg + 45.8 g + 1326.9 mg = kg = g
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