Addition up to 20 (bar model)
Adding a 2-digit number to a single digit with totals up to 20.
Addition up to 20 (bar model)
Adding a 2-digit number to a single digit with totals up to 20.
Adding a 2-digit number to a single digit with totals up to 20.
Adding a 2-digit number to a single digit with totals up to 20.