Missing Number Addition to 20 Worksheet

This worksheet presents a set of addition equations where one number is missing.

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About this worksheet

Learning objectives

  • Math skills

    Children identify missing numbers in addition equations.

  • Math skills

    Children understand number relationships within sums up to 20.

  • Math skills

    Children apply basic addition reasoning to complete equations.

  • Math skills

    Children build confidence in solving simple math problems.

Simple teaching tips

  • Ask the child to read each equation carefully before answering
  • Encourage them to think about what number completes the sum
  • Allow the use of fingers or counting tools if needed
  • Review answers together to reinforce understanding