Practise number bonds to 10 with part-whole diagrams — one value is left blank to fill in, and every sheet prints with a matching answer key. The most useful facts in early math — the pairs that make ten. Free, no signup.
Generate a number-bonds-to-10 sheet →Opens the builder set to bonds that make 10 · 12 bonds · free, no signup.
Quick way to teach it: Drill the pairs that make ten until they're instant: 1+9, 2+8, 3+7, 4+6, 5+5. A ten-frame makes the missing part jump right out.
A number bond is a simple diagram showing how a "whole" splits into two "parts." For bonds to 10, the whole is 10 and the two parts add up to it — like 5 and 5. Bonds to 10 — 7 and 3, 6 and 4, 8 and 2 — are the single highest-leverage set of facts in early arithmetic. They power the make-ten strategy, mental addition, and place value.
Bonds to 10 are usually taught in Kindergarten & Grade 1. Each worksheet leaves one value blank — sometimes a part, sometimes the whole — so kids practise both adding the parts and finding a missing part.
Drill the pairs that make ten until they're instant: 1+9, 2+8, 3+7, 4+6, 5+5. A ten-frame makes the missing part jump right out. Print a fresh sheet, work 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 bonds with a matching answer key. Print as many as you like.