Number Pyramids within 20
Complete the empty stones. Each upper stone is the sum of the two stones directly below it.
- 1.912
- 2.603
- 3.1113
- 4.031
- 5.728
- 6.455
Printable worksheet
Print Number Pyramids within 20.
Solve six three-level pyramids with clear givens, roomy blank stones, and a complete answer key generated from the same exercises.
MathApex
Answer key
Compare each completed Number Pyramid with your worksheet.
- 1.91210313
- 2.603639
- 3.111321416
- 4.103134
- 5.7269817
- 6.4509514
What is on the worksheet?
The sheet contains six Number Pyramids with three levels. The first three ask for the sums above completed lower stones. The next three vary the empty positions, so children use the same neighbouring-stone rule from a different starting point.
Work one relationship at a time
Start where two known stones meet. Add when the stone above is empty, or find the missing part when an adjacent sum is already known. All values stay between 0 and 20. Show the answer key only after the student sheet is complete, or continue with the matching online Practice page for immediate feedback.
Calm and ready to print
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- High contrast, low-ink A4 layout
- The same reviewed maths core used by online practice