Missing Addend Addition Worksheets | Early Algebra Thinking

Help children develop flexible mathematical thinking with addition equations presented in a variety of formats.

This printable maths resource encourages children to move beyond traditional “answer at the end” equations and build a deeper understanding of number relationships, missing addends, and how equations work.

Children practise solving:

• missing number equations
• unknown addends
• equations with totals first
• equations with both addends unknown
• simple early algebra-style problems using letters and symbols

Examples include:

• 6 = 2 + ?
• ? + 6 = 15
• f = 2 + 4
• 17 = ? + ?

These activities support:

• number sense
• flexible thinking
• understanding the equals sign
• early algebraic reasoning
• problem-solving skills

Perfect for:

• Montessori maths
• early elementary classrooms
• maths rotations
• intervention groups
• homeschool learning
• independent practice

What’s Included:
✓ Multiple addition equation formats
✓ Missing addend activities
✓ Early algebra-style equations
✓ Printable worksheets
✓ Low-prep maths practice

A useful resource for helping children understand that equations represent relationships and balance, not simply “the answer comes next.”

PDF printable resource.

Alternative formats for subtraction

Alternative formats for multiplication

Alternative formats for division

or

get it in our money saving maths bundle here or the Alternative Basic Facts Eqautions here.