Practise addition & subtraction fact families with number-triangle diagrams — the trio is given, and kids complete the four related facts. Every sheet prints with a matching answer key. Four facts from one trio of numbers — the link between adding and subtracting. Free, no signup.
Generate a addition & subtraction fact-families sheet →Opens the builder set to + and − fact families · 6 families · free, no signup.
Quick way to teach it: Say all four facts out loud from one triangle. Once kids see that 3 + 4 and 7 − 4 use the very same three numbers, subtraction stops feeling like a brand-new skill.
A fact family is a group of facts built from the same three numbers. The 3, 4 and 7 family gives four facts: 3 + 4 = 7, 4 + 3 = 7, 7 − 3 = 4 and 7 − 4 = 3. An addition–subtraction fact family ties three numbers together: two parts and their whole. From 3, 4 and 7 you get 3 + 4 = 7, 4 + 3 = 7, 7 − 3 = 4 and 7 − 4 = 3 — proof that subtraction just undoes addition.
These are usually taught in Grade 1 & Grade 2. Each worksheet shows the number triangle and leaves the four facts blank, so kids see how + and − undo each other — not just memorise them.
Say all four facts out loud from one triangle. Once kids see that 3 + 4 and 7 − 4 use the very same three numbers, subtraction stops feeling like a brand-new skill. Print a fresh sheet, complete a few each day, and check with the answer key — short, regular practice beats one long session.
Yes — completely free, no account, no email, no watermark. Every click generates fresh families with a matching answer key. Print as many as you like.