Multiply a whole number of up to four digits by a one-digit whole number, and multiply two two digit numbers, using strategies based on place value and the properties of operations. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models.
Understand the properties of operations.
Understand how place value affects multiplication.
Understand how place value affects decomposing numbers (breaking numbers apart) to multiply.
Use multiplication equations to solve a given problem.
Multiply four-digit numbers by one-digit numbers.
Multiply two-digit numbers by two-digit numbers.
Model multiplication with manipulatives (e.g., place value blocks, mats, discs, etc.).
Model and compute multiplication with rectangular arrays, area models and partial products.
Illustrate and explain multiplication using equations, arrays and/or area models.