Add 2 digits to a multiple of 10 (bar model)
Add a 2-digit number to a multiple of 10, with bar models to help.
Add 2 digits to a multiple of 10 (bar model)
Add a 2-digit number to a multiple of 10, with bar models to help.
Add a 2-digit number to a multiple of 10, with bar models to help.
Add a 2-digit number to a multiple of 10, with bar models to help.
