pxt-calliope/docs/reference/game/change-score-by.md

# Change Score By

Add the amount you say to the score for the game.

```sig
game.addScore(1)
```
## Parameters

* a [number](/types/number) that means how much to add to the score. A negative number means to subtract from the score.

## Examples

This program is a simple game.
Press button ``A`` as much as possible.
At the end of 10 seconds, the program will show your score.

```blocks
input.input.onButtonEvent(Button.A, DAL.MICROBIT_BUTTON_EVT_CLICK, () => {
    game.addScore(1)
})
game.startCountdown(10000)
```

## See Also

[score](/reference/game/score), [start countdown](/reference/game/start-countdown)