standard_description: Write simple expressions that record calculations with numbers, and interpret numerical expressions without evaluating them. For example, express the calculation “add 8 and 7, then multiply by 2” as 2 × (8 + 7). Recognize that 3 × (18932 + 921) is three times as large as 18932 + 921, without having to calculate the indicated sum or product.
problem_activity: The first number in a pattern is 5. The pattern rule is to add 6.
a.   Fill in the blanks below to write up to the seventh term in the pattern.
5, ___, ___, ___, ___, ___, ___
b.   Why are all of the numbers in the pattern in Part (a) odd?


aligns: no