Find the Missing Numbers Worksheet

Use the visible numbers to work out what belongs in a gap. This missing-part addition and subtraction worksheet contains 4 practice rows. Find the missing number in each equation, checking whether the row asks for addition or subtraction. The first prompt is __ + 4 = 8. Read it together before writing so the child can explain what the blank represents.

For the first row, the missing number is 4. Use the operation sign and both visible values to reconstruct the complete relationship. A blank may stand for the starting amount, another part, or the result, so do not assume every answer comes after the equals sign. Say the completed row aloud to check that all its numbers work together.

Counters or a simple sketch can make a missing part visible. For addition, combine the parts or separate a known part from the whole. For subtraction, represent the starting amount and what is removed, then check what remains. Let the child explain one gap before moving on, and model the process again when the next row changes what must be found.

The Early Math Essentials set includes related work with number order and quantities. Explore the Addition and Subtraction set for further practice with parts and results. Complete a small selection and revisit any uncertain row together. For an off-page follow-up, make a small counter model, hide one part, and ask which quantity would complete it. Check the answer by revealing the hidden number or group.