CCSS.MATH.CONTENT.2.NBT.B.7
Add and subtract within 1000, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method. Understand that in adding or subtracting three-digit numbers, one adds or subtracts hundreds and hundreds, tens and tens, ones and ones; and sometimes it is necessary to compose or decompose tens or hundreds.
- Plus Plan
Number Talks - Three-Digit Addition Task Cards
Build number sense skills with this set of 24 task cards.
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Addition and Subtraction Word Problem Task Cards (Numbers 1-50)
Use a range of addition and subtraction strategies to solve twenty word problems that contain numbers 1–50.
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Jump Strategy Subtraction Game
Learn how to use the jump strategy to solve subtraction problems with a fun subtraction game.
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Pandora's Party Palace Math Activity - Lower Level Version
16 mathematics problem solving task cards involving money in a real-world context.
- Plus Plan
Number Talks Teaching Resource Pack - Grade 2
A collection of number talks teaching resources that support meaningful and highly engaging conversations in the mathematics classroom.