Using a base 10 number cube model, students will complete addition and subtraction equations. Before completing each equation cubes will be added and subtracted on screen
B. Complete equations that add or subtract all tens or all ones with and without a model of base-10 blocks
C. Add ones to numbers in the second ten using base-10 blocks
D. Subtract from numbers 11-20 using base-10 blocks
E. Solve +/- equations that use numbers in the second ten and a single-digit number (Part 1)