# Operations and Algebraic Thinking (OA)

• 4.OA.A  Use the four operations with whole numbers to solve problems.
• 4.OA.A.1  Represent verbal statements of multiplicative comparisons as multiplication equations. Interpret a multiplication equation as a comparison (e.g., 35 is the number of objects in 5 groups, each containing 7 objects, and is also the number of objects in 7 groups, each containing 5 objects).
• 4.OA.A.2  Multiply or divide within 1000 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). See Table 2.
• 4.OA.A.3  Solve multistep word problems using the four operations, including problems in which remainders must be interpreted. Understand how the remainder is a fraction of the divisor. Represent these problems using equations with a letter standing for the unknown quantity.
• 4.OA.B  Gain familiarity with factors and multiples.
• 4.OA.B.4  Find all factor pairs for a whole number in the range 1 to 100 and understand that a whole number is a multiple of each of its factors.
• 4.OA.C  Generate and analyze patterns.
• 4.OA.C.5  Generate a number pattern that follows a given rule. Identify apparent features of the pattern that were not explicit in the rule itself and explain the pattern informally (e.g., 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).
• 4.OA.C.6  When solving problems, assess the reasonableness of answers using mental computation and estimation strategies including rounding.

*Please note that students at CTA Independence are accelerated in math therefore are learning the level one year above their current grade.