Students review adding a 1-digit number to a 2-digit number to solve for the sum
B. Review adding tens to 2-digit numbers
C. Identify tens from a group of numbers and label place value of 2-digit numbers
D. Break down 2-digit numbers into tens and ones
E. Use place value charts with base-10 blocks to add two 2-digit numbers
F. Solve 2-digit addition equations by adding tens and ones separately
G. Mentally solve 2-digit addition problems
H. Use place value charts with base-10 blocks to add 2-digit numbers, including regrouping
I. Review adding 1- and 2-digit numbers