Best Practices

If you need to extract the module from number X, you can do it in one transaction ###module:max(x...

If you need to create a number without a zero in the end, you may use the following combinations ...

To randomize the numbers inside of an SVG picture you need to first create this SVG picture. Or, ...

1. The coordinate system looks like that The 8 lines below draw 8 lines. The first draws a hor...

Let's say you need to calculate the answer quickly without setting too many random variables and ...

There are two ways in which you can use capital and small letters randomization. Two ways that co...

It's easier to use  ###a1:-a### instead of ###a1:(-1*a)### in calculations. For example, in this...

You know the Random Swap option that allows you to make the conditions of the problems more diver...

In some of the questions examples you need to construct number columns. In the number columns num...

As you can see from these pictures, if your wrong answers have the same (or even partially same...