Free printable Number pyramid with answers
A number pyramid is a triangle of bricks where each brick equals the sum of the two directly beneath it. Fill the blanks by adding upward where two bricks are known and subtracting downward where a brick and one neighbour are. Every puzzle here has exactly one completion.
By size
Height is what makes a number pyramid harder: a taller pyramid has more bricks, and revealing fewer of them (or revealing upper bricks) means more add-and-subtract steps. Start on 3 rows and work up to 6.
Easy number pyramid
Free printable easy number pyramids with answers. A gentle 3-row pyramid with most bricks given, solved by adding up. No sign-up.
Medium number pyramid
Free printable medium number pyramids with answers. A 4-row pyramid with blanks to add up and subtract down, each with one answer. Print with the answer.
Hard number pyramid
Free printable hard number pyramids with answers. A 4-row pyramid with upper bricks revealed, so you work downward. One answer, printed with it.
Large number pyramid
Free printable large number pyramids with answers. A tall 6-row pyramid for a long add-and-subtract solve, with the answer on page two. No sign-up.
By audience
A short pyramid with more bricks given uses the same rule, as a gentle introduction for a child or a beginner.
Number pyramids for kids
Free printable number pyramids for kids with answers. Small 3-row pyramids that practise adding, each with one answer. No sign-up.
Number pyramids for beginners
Free printable number pyramids for beginners with answers. Small pyramids to learn the rule, each with one answer. Print with the answer.
One answer, every time
The thing that makes a number pyramid book worth printing is the guarantee most sellers cannot make: that the revealed bricks fix exactly one completion. Every puzzle is generated by building a pyramid and revealing a set of bricks that pins the bottom row to one solution, proven before it prints. The filled pyramid prints as the answer key.
How to solve a number pyramid
Fill every brick so each one equals the sum of the two bricks directly beneath it, working up to the single brick on top.
The method
- 1Add upward where you can. When two side-by-side bricks are both filled, the brick resting on them is just their sum.
- 2Subtract downward where you can. If a brick and one of the two beneath it are known, the other one below is the brick minus the known neighbour.
- 3Chase the forced bricks. Each number you fill unlocks its neighbours. Keep alternating add-up and subtract-down until the pyramid is full.
- 4Check the top. The apex equals the sum of the whole bottom row by its weights, so a correct bottom row always lands on the printed top number.
- The one rule
- Every brick is the sum of the two directly below it.
- What the answer page shows
- The fully completed pyramid is printed at the back.
- How the grades differ
- Taller pyramids with fewer revealed bricks need more add-and-subtract steps to finish.
- Good for
- Early arithmetic practice and anyone who likes a quick logic warm-up.
Make one now
Pick a height from a gentle 3 rows up to a 6-row pyramid, then print the puzzle and its answer. No sign-up, no watermark.