About Missing Number Post Office
A free Grade 1 math game for practicing unknown numbers. No account or download is needed.
Learning area: Adding & subtracting · Unknown Numbers.
Difficulty: 3 · Challenge within Grade 1. Combine ideas, remember more information or solve several steps.
Next in this learning areaEqual Sign Switchyard3 · ChallengeWhat to do
Read the number sentence. Find the number that belongs in the blank. Deliver five letters to finish.
Choose an activity that fits your learner. Grade labels are a guide; adults can help with the instructions.
