Find the Missing Number!
Help complete the number train. Look at the counting sequence, find the missing number, and drag the correct wagon into the empty spot.
Choose any level below to start immediately. Every new game creates a fresh mix of number sequences, missing positions, and answer wagons.
Choose a level
All levels are open. Choose the number range that matches the learner’s current skills.
What does Missing Number Train practice?
Each round shows a five-number counting sequence with one wagon missing. Students look at the numbers before and after the empty space, choose the correct answer wagon, and complete the train. The three levels gradually extend practice from numbers 1 to 20 through numbers to 100.
Understand how numbers follow one another in a counting sequence.
Identify which number comes immediately before or after another number.
Build confidence recognizing and reasoning with numbers up to 100.
Use nearby numbers as clues to spot the missing value in a sequence.