Missing Numbers to Twenty

Which number is missing? Beginning counters examine twenty-six number sequences, one for each letter of the alphabet. Each sequence has four numbers, ranging from one to 20. There is one number missing from the sequence, and learners must write that number on a line. This worksheet does not require pattern recognition or skipping numbers; it is simply practice in counting consecutive numbers by ones. Because each number is labelled with a letter, consider coordinating with an alphabet lesson.