Fourth Grade Operations and Algebraic Thinking


Word problems, solving for unknowns, factor pairs and input/output boxes. Just click on the blue links to display or print pdfs.


Standards 
Practice
Pages


Use the four operations with whole numbers to solve problems  Cluster 1 

Standard
4.OA.1: Interpret a multiplication equation as a comparison,
e.g., interpret 35 = 5 x 7 as a statement that 35 is 5 times as many as 7 and 7 times as many as 5. Represent verbal statements of multiplicative comparisons as multiplication equations. 
Commutative Property of Multiplication Answers 4.OA.1.a 
Write Number Sentences Answer 4.OA.1.b 
Standard 4.OA.2: Multiply or divide to solve word problems involving multiplicative comparison, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem, distinguishing multiplicative comparison from additive comparison.  Multiplication Word Problems Answers 4.OA.2.a 
Multiplication Comparison Problems Answers 4.OA.2.b 
Standard 4.OA.3: Solve multistep word problems posed with whole numbers and having wholenumber answers using the four operations, including problems in which remainders must be interpreted. Represent these problems using equations with a letter standing for the unknown quantity. Assess the reasonableness of answers using mental computation and estimation strategies including rounding.  Multistep word problems Answers 4.OA.3.a 
Multistep unkown quantity Answers 4.OA.3.b 
Gain familiarity with factors and multiples  Cluster 2 

Standard
4.OA.4: Find all
factor pairs for a whole number in the range 1–100. Recognize that a
whole number is a multiple of each of its factors. Determine whether a
given whole number in the range 1–100 is a multiple of a given
onedigit number. Determine whether a given whole number in the range 1–100 is prime or composite 
Identify prime numbers Answers 4.OA.4.a 
Factor numbers Answers 4.OA.4.b 
Generate and analyze patterns  Cluster 3 

Standard
4.OA.5: Generate
a number or shape pattern that follows a given rule. Identify apparent
features of the pattern that were not explicit in the rule itself. For
example, given the rule “Add 3” and the starting number 1, generate terms in the resulting sequence and observe that the terms appear to alternate between odd and even numbers. Explain informally why the numbers will continue to alternate in this way 
Input/Output Add Answers 4.OA.5.a 
Input/Output Multiplication Answers 4.OA.5.b 