Make a number using subtraction – numbers up to 10

key notes :

Understanding Subtraction:

  • Explain that subtraction means taking away a smaller number from a larger number.
  • Use simple terms: “If you have 5 apples and eat 2, you have 3 left.”

Basic Concept:

Introduce subtraction as a way to find a missing part of a number. For example:

  • “What do you subtract from 7 to get 4?” (Answer: 3 because 7−3=47 – 3 = 47−3=4).

Number Sentences:

  • Teach children to write subtraction equations like 9−4=59 – 4 = 59−4=5.
  • Encourage them to read the equations as “9 minus 4 equals 5.”

Practice with Different Orders:

Focus on finding different ways to make a number using subtraction. For example:

  • To make 5: 7−2=57 – 2 = 57−2=5, 9−4=59 – 4 = 59−4=5, or 10−5=510 – 5 = 510−5=5.

Use Number Lines:

  • Show how to use a number line to subtract. Start at the larger number and count backward to find the result.

Relating to Real-Life Situations:

Create scenarios such as:

  • “You have 8 candies, and you gave 3 to your friend. How many do you have left?”

Learn with an example

⏳How do you make 4?

  • 5 − 3
  • 5 − 2
  • 5 − 1
  • 3 − 1

This is a way to make 3:

  • 5 − 1 = 4

These are not ways to make 3:

  • 5 − 3 = 2
  • 5 − 2 = 3
  • 3 − 1 = 2

⏳How do you make 2?

  • 4 − 3
  • 5 − 3
  • 5 − 2
  • 4 − 1

This is a way to make 2:

  • 5 − 3 = 2

These are not ways to make 2:

  • 4 − 3 = 1
  • 5 − 2 = 3
  • 4 − 1 = 3

⏳How do you make 3?

  • 5 − 3
  • 5 − 1
  • 4 − 2
  • 5 − 2

This is a way to make 3:

  • 5 − 2 = 3

These are not ways to make 3:

  • 5 − 3 = 2
  • 5 − 1 = 4
  • 4 − 2 = 2

Let’s practice!