Can someone tell me what is line 10100, line 24900, etc? I’m checking my tax form and I don’t understand anything

[yanaguayamariana]

Some of the spaces ask me to check line … and I don’t understand what does it means

[TurboTaxSusan]

Line 10100 – Employment income

Line 24900 – Security options deductions

These are lines on your T1, which is the main form of your tax return.