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Lesson: Equivalent Addition and Subtraction Expressions

In this lesson, we will learn how to make numbers to 20 in multiple ways and check whether two expressions equal the same number.

Sample Question Videos

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01:13
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Worksheet • 14 Questions • 3 Videos

Q1:

Which of the following is equal to 9 − 5 ?

  • A 3 + 1
  • B 3 − 1
  • C 3 − 3
  • D 9 + 5

Q2:

Are these two expressions equal?

  • ANo
  • BYes

Q3:

Which equation is wrong?

  • A 2 + 4 = 6 − 1
  • B 6 − 2 = 3 + 1
  • C 5 + 1 = 0 + 6
  • D 2 + 3 = 4 + 1
  • E 1 + 3 = 8 − 4

Q4:

Which equation is wrong?

  • A 1 0 − 3 = 9 − 4
  • B 8 − 3 = 2 + 3
  • C 8 − 5 = 6 − 3
  • D 7 + 3 = 6 + 4
  • E 9 − 7 = 7 − 5

Q5:

Which subtraction sentence is equal to 8 + 5?

  • A 1 5 − 2
  • B 9 − 4
  • C 8 − 5
  • D 2 − 1 5
  • E 5 − 8

Q6:

Which of these is NOT equal to 9?

  • A 1 2 − 2
  • B 1 0 − 1
  • C 1 7 − 8
  • D 1 4 − 5
  • E 1 5 − 6

Q7:

Are these two expressions equal?

  • AYes
  • BNo

Q8:

Which of these is not equal to 11?

  • A 1 9 − 7
  • B 1 5 − 4
  • C 9 + 2
  • D 7 + 4
  • E 1 4 − 3

Q9:

Find the missing number.

Q10:

Am I using the equal sign correctly? Check if the two sums are equal.

  • A yes
  • B no

Q11:

Am I using the equal sign correctly?

Check if the two sums are equal.

  • A yes
  • B no

Q12:

Am I using the equal sign correctly? Check if the two sums are equal: 3 + 6 = 4 + 5 .

  • A No
  • B Yes

Q13:

Which equation is wrong?

  • A 4 + 6 = 7 + 2
  • B 4 + 3 = 6 + 1
  • C 2 + 5 = 3 + 4
  • D 2 + 3 = 5 + 0
  • E 0 + 8 = 3 + 5

Q14:

The figure shows five expressions.

Which expressions are equal to the same number?

  • A ( 5 + 3 ) and ( 4 + 6 )
  • B ( 3 + 4 ) and ( 6 + 1 )
  • C ( 6 − 4 ) and ( 5 + 3 )

Use the equal sign to write an equation using the two equal expressions.

  • A 5 + 3 = 4 + 6
  • B 3 + 4 = 6 + 1
  • C 6 − 4 = 5 + 3
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