Visualize subtraction using virtual base ten blocks.
[i]Answer these open ended questions on your own or with others to form deeper math connections.[/i]
Tara says to subtract [math]415-239[/math], we need to compute [math]4-2[/math] first. Do you agree or disagree? Explain your answer.
What strategies can you think of to solve [math]1000-256[/math]?