West Virginia College and Career Readiness Standards
WV.M.4.NBT. Number and Operations in Base Ten
Use place value understanding and properties of operations to perform multi-digit arithmetic.
M.4.9. Fluently add and subtract multi-digit whole numbers using the standard algorithm.
M.4.10. Multiply a whole number of up to four digits by a one-digit whole number, multiply two two-digit numbers, using strategies based on place value and the properties of operations and illustrate and explain the calculation by using equations, rectangular arrays and/or area models.