Multiplication of two digits by one

Lesson Note: Multiplication of Two Digits by One Digit Numbers

Topic: Multiplication of Two Digits by One Subject: Mathematics Class: Basic 3

Objectives:

1. Recite multiplication tables 2-5.
2. Multiply 2-digit numbers by 1-digit numbers.

Important Notes:

• Recite multiplication tables 2-5:
  • 2 x 1 = 2, 2 x 2 = 4, 2 x 3 = 6, 2 x 4 = 8, 2 x 5 = 10
  • 3 x 1 = 3, 3 x 2 = 6, 3 x 3 = 9, 3 x 4 = 12, 3 x 5 = 15
  • 4 x 1 = 4, 4 x 2 = 8, 4 x 3 = 12, 4 x 4 = 16, 4 x 5 = 20
  • 5 x 1 = 5, 5 x 2 = 10, 5 x 3 = 15, 5 x 4 = 20, 5 x 5 = 25
• To multiply 2-digit numbers by 1-digit numbers:
  • Multiply the tens digit by the 1-digit number
  • Multiply the ones digit by the 1-digit number
  • Add the two products together

Examples:

• 14 x 3 = ?
  • 10 x 3 = 30
  • 4 x 3 = 12
  • 30 + 12 = 42
• 25 x 2 = ?
  • 20 x 2 = 40
  • 5 x 2 = 10
  • 40 + 10 = 50

Class Work: Solve the following exercises:

1. 24 x 5 = _______
2. 17 x 3 = _______
3. 43 x 2 = _______

Assignment: Solve the following homework exercises:

1. 56 x 4 = _______
2. 23 x 6 = _______
3. 19 x 9 = _______

Remember: Practice reciting multiplication tables 2-5 and multiplying 2-digit numbers by 1-digit numbers to become more confident in your math skills.