6th Grade Math Textbook, Progress

(Marvins-Underground-K-12) #1
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


  1. Estimate.

  2. Divide.

  3. Multiply.

  4. Subtract and
    compare.

  5. 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.


2.0

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