Equation Grid Practice
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An equation grid consists of rows and columns with operators and results. Some numbers are missing, and you fill them in yourself. Important: calculations run strictly from left to right — the usual order of operations does not apply here.
Practice equation grids now › Mensa simulationHow it works
- Easy: 2×3 grid with plus and minus, three missing numbers.
- Medium: 3×3 grid with plus, minus and times, four to five missing numbers.
- Hard: 3×3 grid with all four basic operations, five to six missing numbers.
- You type the numbers into the cells and have them checked. Wrong values are marked and the solution is shown.
Sample question
This question type is graphical — see a sample question in the app ›
Tips
- Start with the row or column where only one number is missing.
- Mind the order: here 2 + 3 × 4 equals 20, not 14.
Relevance for IQ and Mensa tests
Arithmetic grids like these appear in some intelligence and aptitude tests and train mental arithmetic and combining.
Frequently asked questions
Does multiplication come before addition?
No. All calculations are evaluated strictly from left to right.
Do I have to choose from answer options?
No, here you type in the missing numbers yourself.
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