Lesson 5 – Long Division

Objective:

At the end of this lesson, students should be able to do long division with ease.

Long division is a method of division. It helps you to divide numbers that you can’t easily divide.

64 ÷ 2

When doing long division, it is very important to start from the left, that is the number in the tens column.

Looking at the example above, the 2 (divisor) is used to divide the dividend which is the 64.

6 Tens ÷ 2 = 3 Tens

Write 3 in the Tens Column directly on the bar above the 6 on the left.

Multiply the quotient by the divisor,    2 x 3 Tens = 6 Tens

Write the product 6 under the 6 Tens.

Next subtract the product from the dividend in the tens column, 6 – 6 = 0

Now move to the number on the right, that is the number in the units column. Bring down the 4 units by drawing an arrow downwards to show where the number is placed. Repeat the process for the 4.

4 units ÷ 2 = 2 units

Write 2 in the units column.

2 x 2 = 4

Write 4 under 4 units,      4 – 4 = 0

∴         64 ÷ 2 = 32

∴ 35 ÷ 3 = 11 remainder 2 because 2 cannot be divided by 3.