Subtracting One-Digit from Two-Digits

2.NBT.5
Module 8 Lesson 2
Differentiation Activity

Pairs of students will each have a number line game board.  Player 1 will draw a card and subtract that number from 50.  Player 2 will go, draw a card, and subtract.  Each player will continue for 5 rounds, subtracting from the number they left off from.  The player that has the lowest score on the number line after 5 rounds, is the winner.

Number Line Game Board
Numeral Cards