Free interactive practice
Play Number Bonds Sprint
Build fast, flexible recall of number pairs that total 10, 20 or 100 in calm untimed practice or a short optional sprint. Saving is off unless you choose it.
Recall a missing number in a symbolic bond to 20. Pictures and matching addition/subtraction calculations need other activities.
Year 1 · Maths
Use Number Bonds To 20
Start here
Focus on number bonds to 10 and 20. Open support for “Identify Addition Sums up to 20 Using Pictures”, then explain the idea in your own words.
Year 1 learners practise number bonds to 10 and 20.
The activities include Identify Addition Sums up to 20 Using Pictures, Identify Subtraction Calculations that Match Pictures, Identify the Correct Subtraction to Match a Picture, and related practice. The checked support below includes video, teaching-practice, worksheet, activity sheets. Open a resource in its provider's website and choose the format that best helps the learner explain the idea independently.
Free offline practice
Print & practise
Practise the selected skills below. Each pack explains what it covers and what to try next.
Number bonds and fact families
Build wholes from two parts and connect addition facts to related subtraction facts. Practise missing parts, zero and checking a claim using counters and part-whole diagrams. Selected number-bond and fact-family practice within 20 only; not instant recall, speed practice, calculations above 20 or the whole topic.
7 pages · answers and adult guidance · selected skills, not the whole topic
Activities covered
Finish one activity, then tap Done to earn one Den Drop ticket. You can earn up to 3 tickets each day.
- Identify Addition Sums up to 20 Using Pictures — support from Oak National Academy
- Identify Subtraction Calculations that Match Pictures — support from Oak National Academy
- Identify the Correct Subtraction to Match a Picture — support from Oak National Academy
- Know Adding Bonds up to 10 — support from Oak National Academy
- Practise Using Adding Bonds up to 10 — support from Oak National Academy
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Watch it explained
watch a video explanation
Interpret and Represent Addition Stories
Best for: a clear explanation before you practise
Interpret and Represent Subtraction Stories
Best for: a clear explanation before you practise
Find Pairs of Numbers That Sum to 10
Best for: a clear explanation before you practise
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Learn it properly
lessons and teaching pages
Transport Trace Count and Add to 20 Worksheet
Best for: worked examples and step-by-step teaching
Picture Problems Challenge Cards
Best for: worked examples and step-by-step teaching
Number Bonds of 10 Maths Activity Sheets
Best for: worked examples and step-by-step teaching
Number Bonds to 10 Activity Booklet
Best for: worked examples and step-by-step teaching
PlanIt Maths Year 1 Addition and Subtraction Lesson Pack 9: Number Bonds of 10
Best for: worked examples and step-by-step teaching
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Practise it
questions and activities to try
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Print and finish
worksheets away from the screen
Subtracting with a Part-Whole Model
Best for: pencil-and-paper practice away from the screen
Subtraction by Crossing Out Pictures Maths Activity Sheets
Best for: pencil-and-paper practice away from the screen
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