Complete the subtraction sentence

key notes :

Introduction to Subtraction

  • Subtraction means taking away or finding the difference.
  • The subtraction symbol (-) represents the operation.

Parts of a Subtraction Sentence

  • Minuend: The number from which another number is subtracted.
  • Subtrahend: The number being subtracted.
  • Difference: The result of subtraction.

Example: 7−3 = 4

  • Minuend: 7
  • Subtrahend: 3
  • Difference: 4

Understanding Missing Numbers

  • Identify whether the missing number is the minuend, subtrahend, or difference.
  • Example: _−3 = 4 or 7−_= 4

Simple Strategies for Completion

  • Counting Back: Start with the minuend and count back by the subtrahend to find the difference.
  • Using Addition: Convert the subtraction problem into an addition problem to check the answer.
    Example: For 7−_=4, think 4+_=7 .

Examples of Subtraction Sentences

Fill in the missing number:

  • _− 2 = 5
  • 8 −_ = 38
  • 6 − 2 =_

Learn with an example

⌚Fill in the missing number. 5 −________= 2

  • Decide which number makes the subtraction number sentence true. You can think of a subtraction fact you know, or you can subtract to find the answer.
  • The subtraction fact is:
  • 5 − 3 = 2
  • Did you remember this subtraction fact? If not, you can find the answer by subtracting.
  • Subtract:
  • 5 − 2 = 3
  • The missing number is 3.

⌚Fill in the missing number. 5 −________= 3

  • Decide which number makes the subtraction number sentence true. You can think of a subtraction fact you know, or you can subtract to find the answer.
  • The subtraction fact is:
  • 5 − 2 = 3
  • Did you remember this subtraction fact? If not, you can find the answer by subtracting.
  • Subtract:
  • 5 − 3 = 2
  • The missing number is 2.

⌚Fill in the missing number. 3 −________= 2

  • Decide which number makes the subtraction number sentence true. You can think of a subtraction fact you know, or you can subtract to find the answer.
  • The subtraction fact is:
  • 3 − 1 = 2
  • Did you remember this subtraction fact? If not, you can find the answer by subtracting.
  • Subtract:
  • 3 − 2 = 1
  • The missing number is 1.

Let’s practice!