Mathematics — Addition Combinations · Select numbers to make the displayed sum

Add Me All

Find useful combinations of number boxes that satisfy the game’s total rather than selecting at random.

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📝 Description

Add Me All is a mental addition activity where students select numbers that combine to make a target sum. It strengthens addition fluency, number bonds, strategy, and quick mental calculation. Multiple correct combinations make the activity useful for repeated practice.

📋 Instructions

Look at the target sum, choose numbers from the grid that add up to that value, and complete as many correct combinations as possible within the time limit.

🎓 Learning Guide: Add Me All

Learning focus: Find useful combinations of number boxes that satisfy the game’s total rather than selecting at random.

Mathematics — Addition Combinations Select numbers to make the displayed sum

Learning objectives

  • Identify the displayed target sum
  • Use mental addition and decomposition to test number sets
  • Check your chosen combination against scoring feedback

Concepts and principles

  • Addition is commutative and associative, so the same total can arise from differently grouped addends.
  • A target can have several representations.
  • The number of selected boxes may matter only if the game explicitly imposes that constraint.

Examples and worked solutions

Independent teaching example (not verified as an in-game prompt): Give two ways to make 12 using positive whole numbers.
Worked solution: 7+5=12 and 3+4+5=12. These are supplemental examples, not guaranteed to match displayed game pieces.

Guided practice

  1. Read the target before selecting boxes
  2. Build an initial sum and determine what remains
  3. Compare a second legal solution, if permitted, with the first

Expected observations and explanations

  • A subtotal can be checked by subtracting it from the target.
  • Large addends may simplify calculation but are not automatically required.

Assessment questions and answers

How much must be added to 17 to make 25?
Answer: 8.
Is 6+9 equal to 9+6?
Answer: Yes; both total 15.

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