Students are given the choice to solve addition equations mentally or using the previous strategies involving number bonds to make exchanges
A. Use base-10 models to add ones to a 2-digit number
B. Add ones to a 2-digit number
C. Use base-10 blocks to add a tens to a 2-digit number
D. Solve addition equations adding tens or ones to a 2-digit number
E. Identify tens numbers from a set
F. Given a number along a number line, identify the next ten
G. Identify the next ten from a given number, without models
H. Use base-10 blocks to practice adding to make a next ten
I. Identify the next ten and find the missing addend
J. Find the missing addend to make the next ten from a given number
K. Use base-10 blocks to solve addition equations with exchanging
L. Use number bonds to solve addition equations with exchanging (Level 1)
M. Use number bonds to solve addition equations with exchanging (Level 2)
O. Add ones to a 2-digit number
P. Add ones to a 2-digit number, with and without exchanging