How to Teach Kids About Telling Time With a Number Bond

Why Number Bonds and Time Make a Perfect Pair

If your child already knows that 3 + 7 = 10, they are closer to reading a clock than you might think. The relationship between numbers on a clock face is built on the same logic as number bonds — pairs of numbers that combine to make a whole. When children see that the minute hand at the 3 means 15 minutes, and at the 9 means 45 minutes, they are essentially working with number pairs that always add up to 60.

This connection makes telling time feel less like memorising a list of random facts and more like solving a familiar puzzle. For children aged 5–9, linking a concept they already understand to a new one is one of the most effective ways to build confidence and lasting knowledge.

What Are Number Bonds, and How Do They Work?

A number bond is a simple mental picture that shows how a whole number is made up of two parts. For example:

• Whole: 10 → Parts: 6 and 4
• Whole: 60 → Parts: 30 and 30, or 15 and 45, or 20 and 40

Children typically meet number bonds when they are learning addition and subtraction. The idea is that if you know one part and the whole, you can always work out the missing part. This mental flexibility is exactly what a child needs when they look at a clock and think, "The minute hand is at the 7 — how many minutes past the hour is that?"

The "Whole = 60" Rule for Minutes

Every hour has 60 minutes. That single fact becomes the anchor for every number bond a child needs to tell time:

• 5 minutes past + 55 minutes to go = 60
• 20 minutes past + 40 minutes to go = 60
• 30 minutes past + 30 minutes to go = 60 (half past!)

Once children internalise this, reading a clock stops being guesswork. They start to reason their way to the answer.

Setting Up a Number Bond Clock Activity at Home

You do not need special equipment. A piece of paper, a pencil, and about 20 minutes are enough to get started.

Step 1 — Draw a Simple Clock Face Together

Draw a large circle and add the 12 numbers. Ask your child to count by fives around the clock (5, 10, 15 … 60). Write the minute values in a different colour just outside each number. This dual-labelled clock is their reference tool for the whole activity.

Step 2 — Introduce the Number Bond Circle

Draw a classic number bond diagram — a circle at the top (the whole) connected to two circles below (the parts). Write 60 in the top circle. Then point to a time on the clock, say 20 minutes past, and ask your child to fill in the two parts: 20 and 40.

Talk through it together:

• "The minute hand has already travelled 20 minutes."
• "How many minutes are left until the next full hour?"
• "20 and what make 60? … That's right, 40!"

Step 3 — Try It With Real Clock Times

Call out a time — "It's quarter past three" — and ask your child to:

1. Show it on the paper clock.
2. Write the number bond (15 + 45 = 60).
3. Say what time it will be in 45 minutes.

This last step quietly introduces elapsed time, a concept that causes a lot of confusion later in primary school. Practising it early, in a low-pressure way, gives children a real head start.

Step 4 — Flip It Around

Now reverse the challenge. Give your child a number bond card (e.g. 25 and 35) and ask them to set the minute hand to show 25 minutes past the hour. This back-and-forth between number and clock face strengthens both directions of understanding.

Fun Games That Reinforce the Skill

Repetition is important, but it does not have to feel like drilling. These light games keep the energy up and the learning going.

Clock Bond Snap

Write times on one set of cards (e.g. 20 past, quarter to, half past) and their matching minute values on another set (20, 45, 30). Shuffle and play Snap — when two cards show the same amount of time in different forms, the first player to call "Snap!" wins the pair.

The 60-Second Challenge

Set a sand timer or kitchen timer for one minute. Ask your child to write as many number bonds to 60 as they can before time runs out. Keep it playful — celebrate every correct pair rather than counting mistakes.

Storytelling With Time

Weave time into short stories you tell together. "The train left at quarter past two. The journey took 35 minutes. What time did it arrive?" Let your child draw the number bond (15 + 35 = 50, so 10 minutes to three) before checking the answer on the clock. Storytelling gives abstract numbers a real-world hook that children remember.

If you want to extend the number work beyond time, the Number Bonds app offers a gentle, game-based way for children to practise finding missing numbers — the same mental skill that underpins clock reading.

Connecting Number Bond Time Work to the Broader Curriculum

Understanding time through number bonds does not exist in isolation. It connects to several areas of early maths that children are developing at the same time.

Addition and Subtraction

Every time a child works out "25 minutes past means 35 minutes to go," they are practising subtraction from 60. This is real, applied arithmetic — and it tends to stick because the context (a clock) is immediately meaningful.

Skip Counting by Fives

Reading clock numbers fluently relies on being able to count in fives. If your child is still building that skill, it is worth practising alongside the number bond activities. Our post on How to Teach Kids About Counting in 2s, 5s & 10s has straightforward ideas for making skip counting feel natural.

Mental Maths Confidence

Children who regularly practise number bonds develop stronger mental arithmetic overall. When a child can hold "60 minus 25" in their head and get 35 without reaching for a pencil, they are building a mental flexibility that supports maths well beyond the primary years.

Practical Takeaways for Parents and Educators

Here is a quick summary of the most useful ideas from this post:

• Start with what they know. If your child can do number bonds to 10 or 20, show them that the same idea applies to 60 — the total minutes in an hour.
• Use a dual-labelled clock. Writing both the hour numbers and the minute values (in a different colour) removes a layer of confusion and lets children focus on the number relationship.
• Keep sessions short. Ten to fifteen minutes of focused, playful practice beats a long, frustrating session every time.
• Celebrate the reasoning, not just the answer. When a child says "I know 20 and 40 make 60, so it must be 20 past," that thinking process is worth praising loudly.
• Connect it to real life. Ask time-related questions during the day — "Dinner is in 25 minutes; what time will that be?" — so the skill feels useful, not just academic.
• Try it in both directions. Give a time and ask for the bond; give the bond and ask for the time. Both directions build stronger understanding.
• Layer in elapsed time gradually. Once "minutes past" and "minutes to" feel comfortable, introduce simple elapsed-time questions to prepare children for the next stage of the curriculum.

For children who benefit from hands-on digital practice, the Math Practice Worksheets app provides daily addition and subtraction exercises that build the exact number fluency that makes clock reading easier.

A Final Word

Telling time is one of those skills that seems simple from the outside but involves several layers of understanding working together. By anchoring it to number bonds — a concept many children already feel comfortable with — you give them a familiar foothold on unfamiliar ground. The clock stops being a mysterious circle of numbers and becomes a number bond puzzle they already know how to solve.

Take it at your child's pace, keep the activities playful, and do not worry if it takes a few weeks for everything to click. With consistent, low-pressure practice, most children get there — and the number sense they build along the way is a bonus that lasts far beyond telling time.

Further reading: For evidence-based guidance on how children learn to read, see Reading Rockets.