Times table code breakers
Use products as codes for letters, treasure maps and mystery messages.
Quick answer
Times table code breakers use multiplication facts to decode secret messages, treasure maps, and puzzles by matching products to letters or symbols.
Learning outcome
By the end of this page, you will be able to use times table facts to find the secret codes that unlock mystery messages and treasure maps.
Success signs:
- You can match multiplication products to letters in a code
- You can use times tables to solve simple puzzles
- You can create your own simple code using multiplication
- You can explain how multiplication helps solve mysteries
Why this matters
Learning times tables isn't just about memorising facts – it's a key tool for solving puzzles, cracking codes, and understanding secret messages. In games like treasure hunts, mystery adventures, and even in real-life situations like planning a party or sharing snacks, knowing your multiplication facts helps you think faster and solve problems more easily.
Code breakers use multiplication to make secret messages that only people who know the code can understand. This is how spies, detectives, and even your friends might send secret notes to each other!
How it works
Code breakers work by using multiplication to create a secret language. Here's how:
- Choose a times table – For example, the 3 times table
- Write out the products – 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36
- Assign letters to each product – 3 = A, 6 = B, 9 = C, etc.
- Write your message – If your message is "CAT", you would use 3, 12, 27
- Give the code to someone – They use the times table to decode your message
This is like a secret language where only those who know the times table can understand the message!
Examples you can see
Let's look at a simple example using the 5 times table:
| Product | Letter |
|---|---|
| 5 | A |
| 10 | B |
| 15 | C |
| 20 | D |
| 25 | E |
| 30 | F |
| 35 | G |
| 40 | H |
| 45 | I |
| 50 | J |
| 55 | K |
| 60 | L |
Now, if you want to write the word "DOG", you would use the products 20, 30, 60. Your friend would look at the 5 times table and see that 20 = D, 30 = O, and 60 = G. They can decode your secret message!
Try another example with the 2 times table:
| Product | Letter |
|---|---|
| 2 | A |
| 4 | B |
| 6 | C |
| 8 | D |
| 10 | E |
| 12 | F |
| 14 | G |
| 16 | H |
| 18 | I |
| 20 | J |
| 22 | K |
| 24 | L |
If your message is "MATH", you would use 22, 16, 12, 4. Your friend would decode it by matching each number to the 2 times table.
Try it as a mini adventure
Imagine you're a detective on a mission to find a hidden treasure! You've found a clue that says:
"The treasure is buried where 3 x 4 = ? steps from the big tree."
You need to solve the multiplication to find how many steps to take. 3 x 4 = 12 steps. So you walk 12 steps from the tree.
But there's more! The next clue says:
"Look for the treasure in the place where 7 x 3 = ? minutes after the big bell rings."
You solve 7 x 3 = 21 minutes. So you wait 21 minutes after the bell rings.
Now you're ready to make your own code! Let's create a treasure map:
- Choose your times table (let's use 6)
- Write the products: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, 72
- Assign letters to each product:
| Product | Letter |
|---|---|
| 6 | A |
| 12 | B |
| 18 | C |
| 24 | D |
| 30 | E |
| 36 | F |
| 42 | G |
| 48 | H |
| 54 | I |
| 60 | J |
| 66 | K |
| 72 | L |
Now you write a message like "HIDE" using the products: 48, 36, 66
Give this to a friend and see if they can decode it using the 6 times table!
Common mistakes
- Mistake: Thinking 5 x 6 = 35 instead of 30
Why it happens: Confusing the times table facts
Fix: Use fingers, a times table chart, or count by 5s six times - Mistake: Mixing up which number is the product and which is the letter
Why it happens: Not paying attention to the code structure
Fix: Read the code table carefully and double-check each number - Mistake: Forgetting that 0 x anything = 0
Why it happens: Not remembering the zero rule
Fix: Remember that zero groups of anything is nothing - Mistake: Using the wrong times table for decoding
Why it happens: Not reading the clue carefully
Fix: Always check what times table the code uses before decoding
Parent and carer guide
Helping your child with times table code breakers is a fun way to practice multiplication skills. Here's how to support them in just 5-10 minutes:
- Start with simple tables – Use the 2, 5, and 10 times tables first, which are easier to learn
- Make it a game – Create your own secret messages using multiplication
- Use everyday objects – Count apples in groups, or use coins to show equal groups
- Ask questions – "What is 4 x 3?" "How many groups of 4 are in 12?"
- Encourage creativity – Let your child design their own code tables and messages
- Don't rush – Take time to make sure they understand how to match products to letters
- Be patient – Mistakes are normal, and each one helps them learn
Watch for signs that they're getting confused, like mixing up the order of numbers or using the wrong times table. If they're struggling, go back to simple equal groups or arrays to help them visualize the multiplication.
Practice questions
- Using the 4 times table, what letter does 16 represent if 4 = A, 8 = B, 12 = C, etc.? Answer: D
- Decode the message using the 3 times table: 9, 12, 15. Answer: C, D, E
- If 7 x 8 = 56, what is the product of 7 x 9? Answer: 63
- Using the 12 times table, what letter does 12 represent if 12 = A, 24 = B, 36 = C, etc.? Answer: A
- What is 0 x 11? Answer: 0
- Using the 6 times table, what letter does 42 represent? Answer: G
- Decode the message using the 10 times table: 30, 50, 70. Answer: C, E, G
- What is 11 x 11? Answer: 121
- Using the 9 times table, what letter does 27 represent if 9 = A, 18 = B, 27 = C, etc.? Answer: C
- What is 12 x 12? Answer: 144
FAQ
What is a times table code breaker?
A times table code breaker is a way to use multiplication facts to create and solve secret messages. You match products from a times table to letters or symbols to make a code.
Can I make my own code?
Yes! You can choose any times table, write out the products, and assign letters to each one. Then you can write secret messages and challenge friends to decode them.
Why do we need to know times tables to break codes?
Because codes use multiplication facts to create secret numbers. If you know your times tables, you can quickly find which letter or symbol each number represents.
What times tables should I start with?
Start with the 2, 5, and 10 times tables, as these are easier to learn. Then move on to 3, 4, and 6. The 7, 8, 9, 11, and 12 times tables are more challenging but very useful.
How can I practice times table code breakers at home?
Make up secret messages using your times tables, or use online games that involve multiplication. You can also use everyday situations like sharing snacks or counting toys to practice.