## Mi Math Standards

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## 2 |
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## 2.NBT.B | ||
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Grade 2 » Number & Operations in Base Ten » Use place value understanding and properties of operations to add and subtract. | ||

## 2.NBT.B.5 | ||
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Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.
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## 2.NBT.B.6 | ||
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Add up to four two-digit numbers using strategies based on place value and properties of operations.
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## 2.NBT.B.8 | ||
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Mentally add 10 or 100 to a given number 100-900, and mentally subtract 10 or 100 from a given number 100-900.
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## 2.NBT.B.9 | ||
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Explain why addition and subtraction strategies work, using place value and the properties of operations.
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## 2.OA.A | ||
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Grade 2 » Operations & Algebraic Thinking » Represent and solve problems involving addition and subtraction. | ||

## 2.OA.A.1 | ||
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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.
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## 2.OA.B | ||
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Grade 2 » Operations & Algebraic Thinking » Add and subtract within 20. | ||

## 2.OA.B.2 | ||
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Fluently add and subtract within 20 using mental strategies.
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