Operations and Algebraic Thinking 

OA.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. 

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 

OA.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. 

OA.6- Solve an unknown-factor problem, by using division strategies and/or changing it to a multiplication problem 

OA.7- Demonstrate fluency with multiplication and division with factors, quotients and divisors up to and including 10. Know from memory all products with factors up to and including 10. Illustrate and explain using the relationship between multiplication and division. Determine the unknown whole number in a multiplication or division equation relating three whole numbers. 

OA.8- Solve two-step word problems using addition, subtraction, and multiplication, representing problems using equations with a symbol for the unknown number. 

OA.9- Interpret patterns of multiplication on a hundreds board and/or multiplication table.