2.OA.A.1 – Solve Addition/Subtraction Word Problems within 100

2.OA.B.2 – Add within 20

2.OA.B.2 – Subtract within 20

2.OA.C.3 – Understanding Odd and Even Numbers

2.OA.C.4 – Addition with Rectangular Arrays

2.NBT.B.7 – Subtract Three-Digit number by Two-Digits

2.NBT.B.7 – Subtract Three-Digit number by Three-Digits

2.NBT.B.8 – Add Three-Digit number by 10 or 100

2.NBT.B.8 – Subtract Three-Digits by 10 or 100

2.NBT.B.9 – Explain Addition/Subtraction using place value

2.G.A.1 – Recognize shapes with different attributes

2.G.A.2 – Partition rectangles into rows and columns

2.G.A.3 – Partition circles / rectangles into 2 to 4 equal shares