Div by 1 Divisor

8/2/2019 Div by 1 Divisor

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Divisionby One DigitDivisors


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Dividing these 16 applesinto 4 equal groups,gives you 4 groups that

have 4 apples in each ofthe groups:

What are yo

u doing when

you divide? When you divide, you

are trying to splitsomething into equally

numbered groups

Take these 16 apples:


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Division by One-digit Divisors

Today you will learn how to divide a

three-digit dividend by a one-digitdivisor, to get a quotient without a

remainder

Lets review these terms


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What are the parts of a

division problem?

The dividend is the number you are dividing

The divisor is the number you are dividing by The quotient is the evenly divided result

The remainder is what is left over that cannot

be evenly divided


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When we write the problem

like this:6 2 = 3 r 0

6is the

dividend

2is the

divisor

3is the

quotient

0is the

remainder


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When writing it like this:

6, thedividend,

moves here

2, thedivisor,

moves

to here

3, thequotient,

stays

here

0is the

remainder62

3 r 0


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The Family Method

Father = Find

Mother = Multiply

Sister = Subtract

Brother = Bring Down


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Father

Father stands for find

Start by looking at the first number in the dividend

Findthe multiple of the divisor that comes closestto that number, without going higher

Use your knowledge of math facts, or amultiplication grid


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7113

Father = find the number closet to the first digit

In the3s, the numberclosest to 7, but notmore than 7, is 6

The other factor is 2

6

Put a 2 above the 7

2

2


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Mother = multiply the number that is thefactor that you found times the divisor

You found 2,multiplyit times the divisor, 3

2 times 3 equals 6

2 X 3 = 6

Put a 6 under the 7

71132

6


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Sister = subtract the number you got bymultiplying the divisor,

from the number in the dividend

You got a 6 when you multiplied

Subtract 6 from 7 7113

2

6

76 = 1

1

The difference must be smaller than the divisor!!!


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Brother = bring down the next number,from the number in the dividend

Bring down the next number inthe dividend

The new number you have is 11

Now start over again with Father for the tens

7113

2

6

11

1


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Now, lets do the last step

Father: 21 is the closestmultiple, the other factor is 7

Mother: 7 X 3 = 21, put 21 underthe 21

Sister: subtract 21 from 2121- 21 = 0

Brother: nothings left, youre done!

71132

6

11

13

9

21

21 0

7


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8644

2

8

6

6

Now, lets practice!

Father

Mother

Sister

Brother

0

2

4 8


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Now, lets do the second step

Father

Mother

Sister

86442

8

06

6

Brother

1

4

24

4


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Now, lets do the last step

Father

Mother

Sister

Brother

86442

8

06

61

4

24

24 0

6

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Div by 1 Divisor