Find the Missing Number — Everyday Objects — Grade 1

Each row gives a child the start and the finish and asks for the move between: a group of a key, a button and an umbrella, the number still there, and a blank for how many left. Finding the missing number means connecting subtraction to its inverse — what taken from the group lands on the result. It is real Grade 1 reasoning, and the pictured everyday objects plus within-twenty numbers keep it checkable by counting, so a child can verify the missing part instead of taking it on trust.

Change-unknown subtraction builds the idea that start, change, and result are linked — that knowing two of them gives the third. A child who finds the amount removed is reasoning about that relationship, not just performing a take-away, which is exactly the Grade 1 growth this targets. Pictured everyday objects and within-twenty numbers keep it concrete.

Children who like everyday objects take to the puzzle of working backward, and it suits a child ready for a little more than plain take-away. When this feels easy, try find the missing number with musical instruments, or find the missing number with shapes. You can also browse every subtraction worksheet or the whole everyday objects collection for grade 1 — each sheet prints cleanly in black and white or plays online for free.