The verb работать/поработать is absolutely regular. Not a single irregular form. Sort of comforting, in its own way:

The first meaning of работать is “to have a job” or “to be working”:

The Russian word for minus is минус, and it can be used out loud in simple subraction statements. Notice the Russians use the future tense будет where Americans use present tense is:

This is a very informal way of talking. In formal Russian the first example sentence comes out much more complicated:

The word can also be used when discussing negative numbers and temperatures:

When we start out in our Russian studies, it's tough for us Americans to know how to read numerical phrases out loud. In this case they come out like this:

Notice that the word минус doesn't change for case here.

The Russian word for plus is плюс, and it can be used out loud in simple addition statements. Notice the Russians use the future tense будет where Americans use present tense is:

This is a very informal way of talking. In formal Russian it comes out much more complicated:

The word can also be used when discussing positive numbers and temperatures:

When we start out in our Russian studies, it's tough for us Americans to know how to read abbreviations and numerical phrases out loud. In this case they come out like this:

Notice that the word плюс doesn't change for case here, and that a normal Russian won't say «по Цельсию» out loud in a context where everyone knows they are talking about degrees Celsius.

Although the most basic meaning of бросать/бросить is “to throw,” the word also can mean “to abandon/leave (someone).” The person who is abandoned appears in the accusative case:

Although the most basic meaning of бросать/бросить is “to throw,” the word also can mean “to quit (doing something).” The thing you quit doing is expressed with an infinitive phrase.