Elena and five of her friends went out
for pizza. The total bill was $18.66.
They shared the bill equally. How much
did each person pay?
To find the amount each person paid, n,
divide: $18.66 6 n.
First estimate by using compatible numbers,
$18 6 $3. Then divide.
To divide a decimal by a whole number:
Write the decimal point in the Divide as you
quotient directly above the would with whole
decimal point in the dividend. numbers. Check.
. $ 3.1 1 0 $ 3.1 1
6 $ 1 8 .6 6 6 $ 1 8 .6 6 6
1 8 $ 1 8. 6 6
0 0 6
0 0 6
0 0 0 6
0 0 0 6
0 0 0 0
Each person paid $3.11.
Study these examples.
2.1 9 ..
4 8 .7 6
8 6 6.
0 7 6.
4 6.
3 6.
3 6.
0.
Divide Decimals by Whole Numbers
3-5
Write the
dollar sign
in the quotient.
Think
$3.11 is close to the estimate of $3.
0.4 8.
3 1 .4 4
0.3 7
2 6 9 .6 2
7 8 6
1 8 2
1 8 2
0
2
Short Division
2.0
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