Page 2 - Lesson Note 3

Division by a 1-digit number (without remainder)

Learning Objectives- Students will learn to divide a three and four digit number by a single digit
number.

Note: Dividend = Quotient × Divisor + Remainder

Example: Divide 42 by 2 2 1
Solution: Dividend = 42 ( 4 tens 2 ones) 2
4 2
Divisor = 2 -4

Step1: Divide 4 tens by 2 (4 ÷ 2 = 2)
0 2
Write 2 in the tens place of the quotient and write product
2
4 below the dividend in the tens place. 0

Subtract ( 4 – 4 = 0)

Step2: Bring down 2 ones.

2 ÷ 2 = 1

Write 1 in ones place in the quotient and write 2 below the dividend in ones place.

Subtract ( 2 – 2 = 0)

Thus, the answer (quotient) is 21.

Example: Divide 426 by 2 2 1 3

Step1- Divide 4 hundreds by 2. 2 4 2 6

4 ÷ 2 = 2 -4
0 2
Write 2 in the hundred place of the quotient. - 2

Subtract (4 -4 = 0) 0 6
- 6
Step2: Bring down 2. 0

Step3: Divide 2 tens by 2.

2 ÷ 2 = 1, write 1 in the tens place of the quotient.

Subtract (2 -2 =0)
Step4: Bring down 6 ones and divide 6 ones by 2.

6 ÷ 2 = 3, write 3 in ones place of the quotient and subtract 6 – 6 = 0
Thus, the quotient is 213.