- = x 0 1 2 3 4 5 6 7 8 9 ( ) % < > + - = x 0 1 2 3 4 5 6 7 8 9 ( )
% < > + - = x 0 1 2 3 4 5 6 7 8 9 ( ) % < > + - = x 0 1 2 3 4 5 6 7 8 9
( ) % < > + - = x 0 1 2 3 4 5 6 7 8 9 ( ) % < > + - = x 0 1 2 3 4 5 6 7 8
9 ( ) % < > + - = x 0 1 2 3 4 5 6 7 8 9 ( ) % < > + - = x 0 1 2 3 4 5 6 7
8 9 ( ) % < > + - = x 0 1 2 3 4 5 6 7 8 9 ( ) % < > + - = x 0 1 2 3 4 5 6
7 8 9 ( ) % < > + - = x 0 1 2 3 4 5 6 7 8 9 ( ) % < > + - = x 0 1 2 3 4 5
6 7 8 9 ( ) % < > + - = x 0 1 2 3 4 5 6 7 8 9 ( ) % < > + - = x 0 1 2 3
130
CChapter 13hapter 13
SSIMPLEIMPLE
D DIVISIONIVISION
When do you need to be able to divide? You need to be able to
do short division in your head when you are shopping at the
supermarket, when you are watching a sporting event, when you are
handling money or splitting up food.
If you have $30 to divide among 6 people, you need to be able to
divide 6 into 30 to fi nd out how much money each person should
receive. You would fi nd they receive $5 each.
30 ÷ 6 = 5
5 × 6 = 30
If you want to calculate a baseball player’s batting average, you need
to be able to calculate division problems. If a player has had 20 at
bats and has made 8 base hits, then you divide the 8 base hits by 20
at bats to get a batting average of .400.
8 ÷ 20 = .400
.400 × 20 = 8
- = x 0 1 2 3 4 5 6 7 8 9 ( ) % < > + - = x 0 1 2 3 4 5 6 7 8 9 ( )
brent
(Brent)
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