Appendix
Standards
This unit focuses on two of the Common Core Standards for Mathematics:
4.OA.3: Solve multistep word problems posed with whole numbers and having whole-number answers using the four operations, including problems in which remainders must be interpreted. Represent these problems using equations with a letter standing for the unknown quantity. Assess the reasonableness of answers using mental computation and estimation strategies including rounding.
4.NBT.4: Fluently add and subtract multi-digit whole numbers using the standard algorithm.
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