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vocabulary

Maths vocabulary for age 7

Key words and phrases children around age 7 need to hear, use and understand.

Quick answer

By the end of this page, you will understand and use the most important maths vocabulary words that help you talk about numbers, shapes, measurements, and how things change in maths.

Learning outcome

By the end of this page, you will be able to use common maths words like "add", "subtract", "equal", "more", "less", "shape", "size", "measure", "pattern", and "data" to talk about numbers and maths problems in everyday life. Success signs:
  • You can explain what "add" means and use it in a sentence
  • You can say which word means "the same amount"
  • You can describe a shape using the right words
  • You can talk about how things change or grow in maths

Why this matters

Maths vocabulary helps you understand what numbers and shapes mean, and how to talk about maths problems. When you know the right words, you can:
  • Understand what your teacher says in maths class
  • Ask good questions when you are stuck
  • Explain how you solved a problem to others
  • Use maths in your daily life, like when you share snacks or count your toys

How it works

Maths words are like the tools you use to build with blocks. You need to know what each word means so you can use it correctly. Here’s how to learn them:
  1. First, listen to the words when your teacher or parent says them
  2. Then, try using the words yourself in sentences
  3. Next, draw or act out what the words mean
  4. Finally, play games that use these words

Examples you can see

Let’s look at some maths words and what they mean: Add means to put things together. For example, if you have 3 apples and your friend gives you 2 more apples, you add them: 3 + 2 = 5 apples. Subtract means to take away. If you have 7 cookies and eat 3, you subtract: 7 - 3 = 4 cookies. Equal means the same. If you have 5 red marbles and 5 blue marbles, you have an equal number of each. More means greater in amount. If you have 6 toys and your sister has 4 toys, you have more toys. Less means smaller in amount. If you have 8 crayons and your brother has 10, he has less crayons than you. Shape is the form of an object. A circle is round, a square has 4 equal sides, and a triangle has 3 sides. Measure means to find out how big, heavy, or long something is. You can measure how tall you are or how much milk is in a glass. Pattern is a repeated design or sequence. For example, red, blue, red, blue is a pattern. Data is information that we collect. If you count how many pets each friend has, that’s data.

Try it as a mini adventure

Adventure: The Treasure Hunt You are on a treasure hunt! You need to follow clues that use maths words. Here’s how the adventure works: 1st time: You find a map that says "Add 3 steps to the right". You move 3 steps to the right. 2nd time: You find a chest that says "Subtract 2 coins from the pile". You take away 2 coins. 3rd time: You find a note that says "The number of coins is equal to the number of stars". You count the stars and match the coins. 4th time: You find a path that says "Go to the place with more trees". You look for the place with more trees. 5th time: You find a box with a pattern of blue and yellow blocks. You continue the pattern. 6th time: You find a chart with your friend's shoe sizes. That’s data! 7th time: You measure how long your shadow is in the sun. Each clue uses a maths word. Try to guess what each clue means before you act it out!

Common mistakes

  • Mistake: Saying "add" when you mean "subtract".
    Why it happens: The words sound similar and can be confusing.
    Fix: Practice with objects. If you have 5 toys and lose 2, you subtract. If you get 2 more toys, you add.
  • Mistake: Thinking "equal" means "the same colour".
    Why it happens: Children often mix up words that sound similar.
    Fix: Use numbers. Show 3 red blocks and 3 blue blocks. They are equal in number, even if they are different colours.
  • Mistake: Confusing "more" and "less".
    Why it happens: These words are opposite but easy to mix up.
    Fix: Use a simple comparison. If you have 6 pencils and your friend has 4, you have more pencils.
  • Mistake: Not knowing what "pattern" means.
    Why it happens: Patterns can be tricky if they are not simple.
    Fix: Start with simple patterns like "red, blue, red, blue". Then try "square, circle, square, circle".

Parent and carer guide

As a parent or carer, you can help your child learn maths words in these ways:
  • Use the words often in everyday conversations, like "How many cookies do you have?" or "Let’s add more milk to the jug."
  • Play games with maths words, like "What word means to take away?"
  • Point out maths words in the environment, like "Look at the shape of this pizza slice!" or "This box is bigger than that one."
  • Read books that use maths words, or make up stories with numbers and shapes.
  • Don’t worry if your child makes mistakes. Mistakes help them learn!

Practice questions

  1. What does "subtract" mean?
    Answer: To take away.
  2. What word means "the same amount"?
    Answer: Equal.
  3. Which word means "greater in number"?
    Answer: More.
  4. What is a shape with 4 equal sides?
    Answer: Square.
  5. What is the name for information we collect?
    Answer: Data.
  6. What word means "smaller in number"?
    Answer: Less.
  7. What is a repeated design called?
    Answer: Pattern.
  8. What do we use to find out how big something is?
    Answer: Measure.
  9. What does "add" mean?
    Answer: To put together.
  10. What shape has 3 sides?
    Answer: Triangle.

FAQ

What are the most important maths words for a 7-year-old?

The most important maths words for a 7-year-old are: add, subtract, equal, more, less, shape, size, measure, pattern, and data.

How can I help my child learn maths words at home?

You can help by using the words in everyday situations, reading maths books, playing maths games, and asking questions like "What does this word mean?"

Why do children find maths words hard?

Children find maths words hard because they are often similar in sound, and they need to understand abstract ideas like "equal" or "pattern" in real life.

Can I make up my own maths words?

Yes! You can make up fun words to help remember them, like calling "subtract" "take away" or "add" "put together".

How can I tell if my child understands maths words?

Ask your child to explain a word or use it in a sentence. If they can explain or use it correctly, they understand it.