## Mi Math Standards

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**ALL**

## 1 |
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## 1.NBT.C.5 | ||
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Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used.
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## 1.OA.A | ||
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Grade 1 » Operations & Algebraic Thinking » Represent and solve problems involving addition and subtraction. | ||

## 1.OA.B | ||
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Grade 1 » Operations & Algebraic Thinking » Understand and apply properties of operations and the relationship between addition and subtraction. | ||

## 1.OA.B.4 | ||
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Understand subtraction as an unknown-addend problem.
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## 1.OA.C | ||
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Grade 1 » Operations & Algebraic Thinking » Add and subtract within 20. | ||