standard_description: For any number from 1 to 9, find the number that makes 10 when added to the given number, e.g., by using objects or drawings, and record the answer with a drawing or equation.
problem_activity: Problem 2
Pre-unit
Find the value of each expression.
\(14 \times 7\)
\(13 \times 6\)
\(23 \times 4\)
\(85 \div 5\)


aligns: no