2.NBT.3:
Number And Operations In Base Ten
Understand Place Value.
Read and write numbers to 1000 using base-ten numerals, number names, and expanded form.
3.NBT.2:
Number And Operations In Base Ten
Use Place Value Understanding And Properties Of Operations To Perform Multi-Digit Arithmetic
Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and-or the relationship between addition and subtraction.
4.NBT.4:
Number And Operations In Base Ten
Use Place Value Understanding And Properties Of Operations To Perform Multi-Digit Arithmetic.
Fluently add and subtract multi-digit whole numbers using the standard algorithm.
1.OA.8:
Operations And Algebraic Thinking
Work With Addition And Subtraction Equations.
Determine the unknown whole number in an addition or subtraction equation relating three whole numbers. For example, determine the unknown number that makes the equation true in each of the equations 8 + ? = 11, 5 = ? - 3, 6 + 6 = ?.
