Blast Off To Space is a great way for your students to practice using two digit addition and subtraction WITH regrouping.
This game is LOW prep but HIGH engagement. Use it as a math center, review game or early finisher activity.
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Explain why addition and subtraction strategies work, using place value and the properties of operations.
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.
Add up to four two-digit numbers using strategies based on place value and properties of operations.
Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.