Common Core Standards Alignment

This worksheet supports the following Common Core State Standards for Mathematics:

• 2.NBT.B.5 Add and subtract to 100 fluently with place-value strategies, properties of addition, or the link between adding and subtracting.
• 2.NBT.B.6 Find the sum of two, three or four two-digit numbers using place value and properties of addition.
• 2.NBT.B.7 Add and subtract to 1,000 with models and place-value strategies, working hundreds, tens and ones separately and regrouping tens or hundreds as needed.
• 2.NBT.B.9 Tell why an adding or subtracting method gives the right answer, reasoning from place value and number properties.
• 3.NBT.A.2 Add and subtract to 1,000 fluently using place-value strategies and written methods, properties of addition, and fact-family relationships.

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