2.OA Operations & Algebraic Thinking 4/4
2.OA.A Represent and solve problems involving addition and subtraction
2.OA.B Add and subtract within 20
2.OA.C Work with equal groups of objects to gain foundations for multiplication
2.NBT Number & Operations in Base Ten 9/9
2.NBT.A Understand place value
2.NBT.B Use place value understanding and properties of operations to add and subtract
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Add & Subtract Within 100Add and subtract two-digit numbers within 100, including adding up to four two-digit numbers.
2.NBT.B.52.NBT.B.6 -
Add & Subtract Within 1000Add and subtract within 1000 using place value, mentally add or subtract 10 or 100, and explain why strategies work.
2.NBT.B.72.NBT.B.82.NBT.B.9