Third Grade Operations and Algebraic Thinking 

Fluently
multiply and divide within 100, find unknowns, apply properties of
operations and answer word problems. Just click on the blue links to display or print pdfs.


Standards 
Practice
Pages


Represent and solve problems involving multiplication and division  Cluster 1 

Standard
3.OA.1: Interpret
products of whole numbers, e.g., interpret 5 x 7 as the total number of
objects in 5 groups of 7 objects each. 
Multiply Objects Answers 3.OA.1.a 
Multiply Objects Answers 3.OA.1.b 
Standard 3.OA.2: Interpret
wholenumber quotients
of whole numbers, e.g. interpret 56/8 as the number of objects in each
share when 56 objects are partitioned equally into 8 shares, or as a
number of shares when 56 objects are partitioned into equal shares of 8
objects each. 
Divide Objects Answers 3.OA.2.a 
Divide Objects Answers 3.OA.2.b 
Standard 3.OA.3: Use
multiplication and division within
100 to solve word problems in situations involving equal groups,
arrays, and measurement quantities, e.g., by using drawings and
equations with a symbol for the unknown number to represent the problem. 
Multiply Objects Answers 3.OA.3.a 
Division Sentences Answers 3.OA.3.b 
Standard 3.OA.4: Determine the unknown whole number in a multiplication or division equation relating three whole numbers.  Multiplication Answers 3.OA.4.a 
Multiplication Unknowns Answers 3.OA.4.b 
Understand properties of multiplication and the relationship between multiplication and division  Cluster 2 

Standard 3.OA.5: Apply
properties of operations as strategies to multiply and divide. 
Commutative Multiplication Answers 3.OA.5.a 
Inverse Property Answers 3.OA.5.b 
Standard 3.OA.6: Understand division as an unknownfactor problem.  Multiplication Answers 3.OA.6.a 
Missing Factors Answers 3.OA.6.b 
Multiply and divide within 100  Cluster 3 

Standard 3.OA.7: Fluently
multiply and divide within 100 using strategies such as the
relationship between multiplication and division (e.g. knowing that 8 x
5 = 40, one knows 40/5 = 8) or properties of operations. By the
end of Grade 3, know from memory all products of two onedigit numbers. 
Multiply/Divide Answers 3.OA.7.a 
Multiply/Divide Answers 3.OA.7.b 
Solve problems involving the four operations, and identify and explain patterns in arithmetic  Cluster 4 

Standard 3.OA.8: Solve twostep word problems using the four operations. Represent these problems using equations with a letter standing for the unknown quantity. Assess the reasonableness of answers using mental computations and estimation strategies including rounding.  Rounding Answers 3.OA.8.a 
3 part word problems Answers 3.OA.8.b 
Standard 3.OA.9: Identify arithmetic patterns (including patterns in the addition table or multiplication table), and explain them using properties of operations.  Addition Input/Output Answers 3.OA.9.a 
Multiply Input/Output Answers 3.OA.9.b 