72 Chapter 1 Whole Numbers
StateIt will take the tunneling machine 240 days to drill 7,920 feet through solid
rock.
CheckWe can check using multiplication.Quotient divisor dividend. The result checks.240
33
720
7200
7920
240
33 7,920
66
132
132
00
00
0
Sometimes it is helpful to organize the given facts of a problem in a table.EXAMPLE (^4) Orchestras An orchestra consists of a 19-piece woodwind
section, a 23-piece brass section, a 54-piece string section, and a two-person
percussion section. In all, how many musicians make up the orchestra?
Self Check 4
ANATOMY A human skeleton
consists of 29 bones in the skull;
26 bones in the spine; 25 bones in
the ribs and breastbone; 64 bones
in the shoulders, arms, and hands;
and 62 bones in the pelvis, legs
and feet. In all, how many bones
make up the human skeleton?
Now TryProblem 23
AnalyzeWe can use a table to organize the facts of the problem.
Section Number of musicians
Woodwind 19
Brass 23
String 54
Percussion 2
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