Elf Elevator

1.OA.5
2.OA1 – Using addition and subtraction within 100 to solve one-and two-step word problems involving situations of additing to, taking from, putting together, taking apart, and comparing, with unknowns in all positions.
2.NBT.5

Adding and subtracting up to 100.

Act 1

What do you notice? What do you wonder?

Focus Questions: How many buttons were lit up?

Act 2

How did you count?

Act 3