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