Topic 1

North Carolina Standard Course of Study Third Grade Mathematics

Operations and Algebraic Thinking

Represent and solve problems involving multiplication and division

NC.3OA.1: For products of whole numbers with two factors up to and including 10:

• Interpret the factors as representing the number of equal groups and the number of objects in each group.
• Illustrate and explain strategies including arrays, repeated addition, decomposing a factor, and applying the commutative and associative properties

NC.3.OA.2: For whole-number quotients of whole numbers with a one-digit divisor and a one-digit quotient:

• Interpret the divisor and quotient in a division equation as representing the number of equal groups and the number of objects in each group.
• Illustrate and explain strategies including arrays, repeated addition or subtraction, and decomposing a factor.

NC.3OA.3: Represent, interpret, and solve one-step problems involving multiplication and division.

• Solve multiplication word problems with factors up to and including 10. Represent the problem using arrays, pictures, and/or equations with a symbol for the unknown number to represent the problem.
• Solve division word problems with a divisor and quotient up to and including 10. Represent the problem using arrays, pictures, repeated subtraction and/or equations with a symbol for the unknown number to represent the problem.