Understand subtraction as an unknown-addend problem.
Operations and Algebraic Thinking
Understand and apply properties of operations and the relationship between addition and subtraction.
Understand subtraction as an unknown-addend problem.
Operations and Algebraic Thinking
Understand and apply properties of operations and the relationship between addition and subtraction.
Understand properties of multiplication and the relationship between multiplication and division.
Understand division as an unknown-factor problem.
Interpret products of whole numbers, e.g., interpret 5 × 7 as the total number of objects in 5 groups of 7 objects each.
Interpret a multiplication equation as a comparison, e.g., interpret 35 = 5 × 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.
Work with equal groups of objects to gain foundations for multiplication.
Understand subtraction as an unknown-addend problem.
Understand subtraction as an unknown-addend problem.
Understand subtraction as an unknown-addend problem (e.g., subtract 10 – 8 by finding the number that makes 10 when added to 8).
Understand subtraction as an unknown-addend problem.
Understand subtraction as an unknown-addend problem.