Lesson Worksheet: Properties of Addition: Fractions Mathematics • 5th Grade

In this worksheet, we will practice using the commutative and associative properties to add three fractions or mixed numbers.

Q1:

Which property of addition is used in 57+619=619+57?

  • Aassociative property
  • Badditive-inverse property
  • Cadditive-identity property
  • Dclosure property
  • Ecommutative property

Q2:

True or False: The associative property is used in 12+34+57=12+34+57.

  • AFalse
  • BTrue

Q3:

Fill in the blank: 17+37+110=(+)+110.

  • A17, 110
  • B17, 37
  • C37, 110

Fill in the blank: The result of 17+37+110 is .

  • A4770
  • B17
  • C517
  • D47
  • E57

Q4:

Which property of addition is used in 123+214=214+123?

  • ACommutative property of addition
  • BAdditive identity property of addition
  • CAssociative property of addition
  • DBoth the associative and commutative properties

Q5:

Fill in the blanks: 114+112+238=(+)+238=.

  • A112, 112, 518
  • B112, 114, 418
  • C114, 112, 518
  • D114, 112, 418
  • E114, 114, 518

Q6:

Mia needs to add 14 and 12. Her friends, Isabella and Emma, try to help her as shown. Who is right?

  • AMia
  • BBoth of them
  • CIsabella

Q7:

By using the associative property of addition, solve 12+14+38.

  • A98
  • B58
  • C89
  • D78
  • E34

Q8:

State the property shown here 112+214+113=112+214+113, then simplify the expression.

  • ACommutative property of addition, 5112
  • BAssociative property of addition, 4112
  • CCommutative property of addition, 4112
  • DAssociative property of addition, 5112
  • EAdditive identity property of addition,5112

Q9:

Which property of addition is used in 112+113+115=112+113+115?

  • AThe additive identity property of addition
  • BThe commutative property of addition
  • CBoth the associative and the commutative properties
  • DThe associative property of addition

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