Coordinates
Read a point off a grid, move it around, and work out the last corner of a rectangle. Starts in the corner where everything is positive, and grows into all four quarters.
No account, and the maths stays in your browser — more— less
This activity is for learning and practice. Anything it suggests is indicative only — it is not a formal assessment and not a substitute for a teacher or tutor.
Nothing you answer is sent to Zerdly. Progress is saved on this device only if you switch saving on, and you can delete it at any time. How Kids Maths handles data.
Set your country and age — change
Setting an age keeps the questions at the right level for that age. It does not lock anything — you can still try any topic, at any age, in any order. Levels are a guide only, not a curriculum.
Your age is not saved anywhere. Your country is remembered only if you have switched saving on.
Saving your progress
Nothing is being saved. You can practise as much as you like — when you close the tab, the session is gone.
Across, then up
(3, 4) means three across and four up — in that order, always. Get the order the wrong way round and you are pointing at a completely different place, which is why almost every mistake in this topic is that one mistake.
The one that sticks: along the corridor, then up the stairs. You cannot climb the stairs before you have walked down the corridor.
One coordinate at a time
This tool asks for the x-coordinate or the y-coordinate by name, rather than for the whole pair. That is deliberate. A child who writes (4, 3) instead of (3, 4) has told you nothing about whether they can read a grid — they may have read it perfectly and written it down backwards. Asking for one at a time separates the two.
Going below zero changes nothing
When the grid grows left and down, the method is exactly the same: count across from where the two lines cross, then count up or down. The only new thing is that the numbers on the left and underneath have a minus sign — and negative numbers are the same numbers you already met on a number line, stood up on their side.
School levels
School levels are a guide only. They show where a skill is usually taught in each country and are not taken from, aligned to, or endorsed by any curriculum authority. Your school may cover it earlier or later.