Number Bonds
mathMathLogic

Number Bonds

The Number Bonds generator creates part-part-whole triangle diagrams that show the relationship between a whole number and its two parts — the visual model behind every addition and multiplication fact family. Students fill in the missing part, whole, or derive all related equations, building the flexible number thinking that makes arithmetic intuitive rather than memorised. Covers both addition bonds and multiplication fact families for Grades K–4. Answer key included.

Grade Levels

KGrade 1Grade 2Grade 3Grade 4

What's Included

Answer Key included
Teacher Guide included
Reproducible from seed

Curriculum Standards

CCSS Math OA

Operations and Algebraic Thinking

CCSS Math NBT

Number and Operations in Base Ten

Support Skill logic

Logic and problem solving

Topics

additionsubtractionmultiplicationdivisionfact fluencyoperationsalgebraic thinking