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1.OA.A.1

Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.See Glossary, Table 1.

Tasks

School Supplies
At the Park
Boys and Girls, Variation 1
Maria’s Marbles
Sharing Markers
Finding a Chair
Boys and Girls, Variation 2
The Pet Snake
Measuring Blocks
Measuring Blocks
Growing Bean Plants
20 Tickets
Field Day Scarcity
Peyton's Books
Link-Cube Addition