Update your skills. See page 3.
Short Division
3-1
0 $ 2
9 $ 1 9 ^10 8
0 $ 2 1 2
9 $ 1 9 ^10 ^18
Division Steps
- Estimate.
- Divide.
- Multiply.
- Subtract and
compare. - Bring down
and repeat.
153,278 is an
even number.
no remainder
7 6,63 9
2 1 5 ^13 ,^12 7 ^18
59,679 does not
have 0 or 5 as
its last digit.
has a remainder
69,123
6 9 1 2 3 21;
21 3 7
no remainder
1 1,93 5 R4
5 5 9 ,6^14 7 ^2 9
2 3,04 1
3 6 9 , 1 ^12 3
Leilani’s sister saved the same amount
of money each month for 9 months for a
vacation. The vacation cost $1908.
How much did she save each month?
To find the amount she saved each
month, n, divide: $1908 9 n.
You can use short division to divide
mentally by a one-digit divisor.
Leilani’s sister saved $212 each month.
To predict if a quotient has
a remainder, you can use
divisibility rules.
153,278 2 59,679 5 69,123 3
01 . 9 . 9
10 . 9 . 1
0 $ 21
9 $ 1 9 ^10 ^18
02 . 9 . 18
19 18 1
02 . 9 . 18
18 18 0
Remember:
A number is divisible by:
- 2 if it is an even number.
- 3 if the sum of its digits is divisible by 3.
- 5 if its last digit is a 0 or a 5.
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