CCSS Math Standards

Standards

Math
1.NBT.6
1
Number & Operations in Base Ten
Use place value understanding and properties of operations to add and subtract. Subtract multiples of 10 in the range 10-90 from multiples of 10 in the range 10-90 (positive or zero differences), 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 and explain the reasoning used.
I can use place value understanding and properties of operations to add and subtract.