For this activity, you will be deciding what number to add to the given two digit number to get to the next round number. You will be doing this with and without the assistance of a base 10 cube model
A. Solve equations that add or subtract 1 or 10 with and without modeling with base-10 blocks
B. Model and solve addition equations that add a single-digit number to a two-digit number using a number line
C. Solve equations that add a single-digit number to a two-digit number (Part 1)
D. Choose matching addition expression and sum
F. Determine a missing addend to add up to the next round number and solve the equation (Part 1)
G. Determine a missing addend to add up to the next round number and solve the equation (Part 2)
H. Determine a missing addend to add up to the next round number and solve the equation (Part 3)
I. Model and solve 2-digit addition equations with exchanging using base-10 blocks
J. Solve addition equations across 10 using a number line
K. Solve addition equations across a 10 by splitting an addend to make a ten
L. Solve equations that add a single-digit number to a two-digit number (Part 2)