Check out this FREE Grade 1 Trial Lesson on Addition & Subtraction!

Using Unknown addend problems to help with Subtraction

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With answer key
Interactive
  • Grade 1
  • With answer key
  • Practicing mental arithmetic
  • Addition & Subtraction
  • Normal
Part, Part, Whole Worksheet
Part, Part, Whole Worksheet

Part, Part, Whole Worksheet

Help your child find the missing numbers in the puzzles. The worksheet combines fun and maths - stimulating the brain while keeping them engaged. Colourful pages will keep the learning enjoyable. Simple addition and subtraction will ensure they stay entertained.
Part, Part, Whole Worksheet
Worksheet