Missing numbers
In 5 + ? = 12, children often add the two numbers they can see and answer 17. The missing number is the other part of 12. Counters make that visible: 12 spots, 5 filled, and the empty spots are the answer.
Year 1 · Missing numbers
Nothing is saved
What number is missing?
5 + ? = 12
This is a short practice, not an assessment. One or two answers can’t show where a child is stuck, which is why a Skill Check asks several questions.