5.OA.1

Use parentheses, brackets, or braces in numerical expressions, and evaluate expressions with these symbols.

ALGEBRA TOUCH
Helps strengthen understanding of algebra concepts and procedures.
Cost - FREE on iOS devices

5.OA.2

Write simple expressions that record calculations with numbers, and interpret numerical expressions without evaluating them. Example: For example, express the calculation "add 8 and 7, then multiply by 2" as 2 × (8 + 7). Recognize that 3 × (18932 + 921) is three times as large as 18932 + 921, without having to calculate the indicated sum or product.

5.OA.2.1

Express a whole number in the range 2-50 as a product of its prime factors. Example: For example, find the prime factors of 24 and express 24 as 2x2x2x3.

PRIME & COMPOSITE NUMBERS
Practice 

PRIME FACTORIZATION 
Practice 

PRIME FACTORS 
Written explanation and various strategies shown.

PRIME FACTORIZATION 
Video & Practice Problems

FACTOR TREES
Conceptual Understanding - Game

5.OA.3

Generate two numerical patterns using two given rules. Identify apparent relationships between corresponding terms. Form ordered pairs consisting of corresponding terms from the two patterns, and graph the ordered pairs on a coordinate plane. Example: For example, given the rule "Add 3" and the starting number 0, and given the rule "Add 6" and the starting number 0, generate terms in the resulting sequences, and observe that the terms in one sequence are twice the corresponding terms in the other sequence. Explain informally why this is so.