Mi Math Standards
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Grade 2 » Number & Operations in Base Ten » Use place value understanding and properties of operations to add and subtract.
Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.
Add up to four two-digit numbers using strategies based on place value and properties of operations.
Mentally add 10 or 100 to a given number 100-900, and mentally subtract 10 or 100 from a given number 100-900.
Explain why addition and subtraction strategies work, using place value and the properties of operations.1
Grade 2 » Operations & Algebraic Thinking » Represent and solve problems involving addition and subtraction.
Grade 2 » Operations & Algebraic Thinking » Add and subtract within 20.
Fluently add and subtract within 20 using mental strategies.2 By end of Grade 2, know from memory all sums of two one-digit numbers.