Operations and Algebraic Thinking

Represent and solve problems involving addition and subtraction.
2.OA.1 Use addition and subtraction within 100 to solve one-and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.
(See Glossary, Table 1).

Tasks
Add To-Result Unknown, One Step
2.OA Task 5a; 2.OA 5a Student Form
2.OA Task 5b; 2.OA 5b Student Form
2.OA Task 5c; 2.OA 5c Student Form
2.OA Task 5d; 2.OA 5d Student Form
0
Add To-Change Unknown, One Step
2.OA Task 6a; 2.OA 6a Student Form
2.OA Task 6b; 2.OA 6b Student Form
2.OA Task 6c; 2.OA 6c Student Form
Add To-Start Unknown, One Step
2.OA Task 1a; 2.OA 1a Student Form
2.OA Task 1b; 2.OA 1b Student Form
2.OA Task 1c; 2.OA 1c Student Form
2.OA Task 1d; 2.OA 1d Student Form
Take From-Result Unknown, One Step 0000000000000
2.OA Task 7a; 2.OA 7a Student Form
2.OA Task 7b; 2.OA 7b Student Form
2.OA Task 7c; 2.OA 7c Student Form
Take From-Change Unknown, One Step 0000000000000
2.OA Task 8a; 2.OA 8a Student Form
2.OA Task 8b; 2.OA 8b Student Form
2.OA Task 8c; 2.OA 8c Student Form
Take From-Start Unknown, One Step
2.OA Task 2a; 2.OA 2a Student Form
2.OA Task 2b; 2.OA 2b Student Form
2.OA Task 2c; 2.OA 2c Student Form
2.OA Task 2d; 2.OA 2d Student Form
0
Put Together/Take Apart-Total Unknown,
Two Step
2.OA Task 9a; 2.OA 9a Student Form
2.OA Task 9b; 2.OA 9b Student Form
2.OA Task 9c; 2.OA 9c Student Form
0
Put Together/Take Apart-Addend Unknown,
One Step
2.OA Task 10a; 2.OA 10a Student Form
2.OA Task 10b; 2.OA 10b Student Form
2.OA Task 10c; 2.OA 10c Student Form
Put Together/Take Apart-Both Addends Unknown,
Two Step
2.OA Task 11a; 2.OA 11a Student Form
2.OA Task 11b; 2.OA 11b Student Form
Compare-Difference Unknown: More, One Step
2.OA Task 12a; 2.OA 12a Student Form
2.OA Task 12b; 2.OA 12b Student Form
2.OA Task 12c; 2.OA 12c Student Form
Compare-Bigger Unknown: More, One Step
2.OA Task 13a; 2.OA 13a Student Form
2.OA Task 13b; 2.OA 13b Student Form
2.OA Task 13c; 2.OA 13c Student Form
Compare-Smaller Unknown: More, One Step
2.OA Task 3a; 2.OA 3a Student Form
2.OA Task 3b; 2.OA 3b Student Form
2.OA Task 3c; 2.OA 3c Student Form
2.OA Task 3d; 2.OA 3d Student Form
0
Compare-Difference Unknown: Fewer, One Step
2.OA Task 14a; 2.OA 14a Student Form
2.OA Task 14b; 2.OA 14b Student Form
2.OA Task 14c; 2.OA 14c Student Form
Compare-Bigger Unknown: Fewer, One Step
2.OA Task 4a; 2.OA 4a Student Form
2.OA Task 4b; 2.OA 4b Student Form
2.OA Task 4c; 2.OA 4c Student Form
2.OA Task 4d; 2.OA 4d Student Form
0
Compare-Smaller Unknown: Fewer, One Step
2.OA Task 15a; 2.OA 15a Student Form
2.OA Task 15b; 2.OA 15b Student Form



Take From-Start Unknown,
One-step