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1.NBT.5
5. 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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Use place value understanding and properties of operations to add and subtract.
2.NBT.5
5. Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relation
ship between addition and subtraction.
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4.NBT.5
5. Multiply a whole number of up to four digits by a one-digit whole number, and multiply two two-digit numbers, using
strategies based on place value and the properties of operations. Illustrate and explain the calculation by using equations,
rectangular arrays, and/or area models.
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5.NBT.5
5. Perform operations with multi-digit whole numbers and with decimals to hundredths.
5. Fluently multiply multi-digit whole numbers using the standard algorithm.
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