standard_description: Understand subtraction as an unknown-addend problem. For example, subtract 10 – 8 by finding the number that makes 10 when added to 8.
problem_activity: Problem 1
What is the value of
$$10\frac16-\frac56$$
? Select the
two
correct answers.
Problem 2
Solve. Show or explain your work.
a.
$$6\frac9{10}-3\frac7{10}$$
b.
$$8\frac15-2\frac35$$


aligns: no