Division

Division

Repeated subtraction

Rebecca had 8 balloons.

Lucy took 2 balloons from her.

8 - 2 = 6

Rebecca was left with 6 balloons.

Diana took 2 balloons.

6 - 2 = 4

Rebecca was left with 4 balloons.

Jack took 2 balloons.

4 - 2 = 2

Rebecca was left with 2 balloons.

Lily took 2 balloons.

2 - 2 = 0
Rebecca was left with no balloons.
 

How many times did Rebecca subtract 2?

8 - 2 = 6

6 - 2 = 4

4 - 2 = 2

2 - 2 = 0

Rebecca subtracted 2 four times.

There are 10 stars. How many times can you subtract 2?

Division

Division
Division is equal sharing or repeated subtractions.
Oliver has 6 pears. He wants to put the 6 pears equally into 2 baskets.
 
 

6 divided by 2 is equal to 3. There are 3 pears in each baskets.

Now, Oliver wants to put the 6 pears equally into 3 baskets.

6 ÷ 3 = 2
There are 2 pears in each basket.

Lucy has 12 sweets. She shares the sweets equally among her 4 friends

Each friend gets 3 sweets.

Harry has 10 erasers. He puts equal number of erasers in 2 boxes

There are 5 erasers in each box.

Division

Relationship between Division and Multiplication

Rebecca has 8 balloons.

She shares the balloons equally with his 4 friends.

How many balloons does each friend get?

8 ÷ 4 = ?

Recall the table of 4.

1 × 4 = 4

2 × 4 = 8

8 comes in the table of 4 after 2 times.

8 ÷ 4 = 2

Each friend gets 2 balloons.

Nico has 6 cups.

He puts equal number of cups in 3 boxes.

How many cups are there in each box?

6 ÷ 3 = ?

Recall the table of 3.

1 × 3 = 3

2 × 3 = 6

6 comes in the table of 3 in the second step.

6 ÷ 3 = 2

There are 2 cups in each box.

Division

Division without Remainder

Division of a 2-Digit Number by a 1-Digit Number
Let us divide 63 by 7.

• Arrange the numbers in division form.

• Recall multiplication table of 7. 7× 1= 7, 7 × 2 = 14,..., 7 × 9 = 63.

   Put 9 in quotient place and 63 below the dividend.

• Subtract 63 from 63.
63 - 63 = 0
So, 63 ÷ 7 = 9


Division of a 3-Digit Number by a 1-Digit Number
Let us divide 123 by 3.

• Arrange the numbers in division form.

• Recall multiplication table of 3.

  3 × 1= 3, 3 × 2 = 6, 3 × 3 = 9, 3 × 4 = 12.

  Put 4 in quotient place and write 12 below 12.

• Subtract 12 from 12.

  12 - 12 = 0

• Bring down 3 after 0.

• Again, recall multiplication table of 3.

  3 × 1 = 3

• Put 1 in quotient place and write 3 below 3.

• Subtract 3 from 3. 3 - 3 = 0

So, 123 ÷ 3 = 41

Division

Division with Remainder
Division of a 2-Digit Number by a 1-Digit Number
Let us divide 59 by 8.

  59 - 56 = 3
So, Quotient = 7 and Remainder = 3


Division of a 3-Digit Number by a 1-Digit Number
Let us divide 169 by 4.

• Arrange the numbers in division form.

• Recall multiplication table of 4.

  4 × 1= 4, 4 × 2 = 8, 4 × 3 = 12, 4 × 4 = 16

  Put 4 in quotient place and write 16 below 16.

• Subtract 16 from 16.

  16 - 16 = 0

• Bring down 9 after 0.

• Again, recall multiplication table of 4.

  4 × 1 = 4, 4 × 2 = 8

• Put 2 in quotient place and 8 below 9.

• Subtract 9 from 8.

   9 - 8 = 1

So, Quotient = 42 and Remainder = 1.