Number Bonds to 10: Parts and Wholes

About This Resource

A free Grade 1 lesson and worksheet on number bonds to 10: finding the missing part, pairs that make 10, number bond word problems and drawing your own bonds. Includes a timed lesson plan, worksheet, editable Word version and answer key.

Overview

Children learn that a number can be split into two parts and that the parts join to make the whole. They use counters and fingers to find all the ways to make 10, complete missing-part number sentences, choose pairs that make 10, solve short story problems, and draw their own number bonds.

Resource Details

Subject: Math
Topic: Number Bonds to 10
Category: Addition & Subtraction
File Type: PDF
File Size: 230 KB
Published: 30 Oct 2026
Downloads: 0

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Grade 1 (ages 6–7) 40 minutes Addition facts part–whole thinking mental math problem solving

Student Task

Start with ten counters or ten fingers and show different ways to split them.
Model a number bond diagram on the board (whole at the top, two parts below), then do activity 1 together.
Children complete the rest of the worksheet; answers are in the answer key.

Classroom Use

Ten-frame flash: show a ten-frame with some dots and children say how many more make 10.
Bond partners: give each child a number card from 0 to 10; children find a partner whose number makes 10 with theirs.
Shake and spill: shake ten two-color counters in a cup, spill them and write the number bond.

Differentiation

Support: use counters or a ten-frame for every question. Challenge: find every number bond for 10 in order (0 and 10, 1 and 9 …) and explain the pattern.

Answer Key & Assessment

Activities 1 and 2 check missing parts; activities 3 to 5 check pairs to 10 and problem solving (answer key included).

Learning Objectives

Explain that two parts join together to make a whole.
Find the missing part of a number bond for numbers up to 10.
Know the pairs of numbers that make 10.

Teacher Tips

Use the same words every time: "part, part, whole". Children who can see the bond as a picture find subtraction much easier later.

What's Included

6-page printable PDF lesson pack: teacher lesson plan with timings, materials and differentiation
Key vocabulary list (4 words with meanings and examples)
Student worksheet (5 activities)
Editable Word version of the worksheet
Complete answer key (also as a separate PDF)