You need a series with two or more front elements with flight (one of which is a salto or aerial) for level 7. Most common are front handspring + ft tuck or ft pike; or tuck + tuck, pike + tuck.
In level 8, you need a pass with two saltos, and most people are going to do that with a front + front series or a front tuck step-out into something. However, it can also be a whip through to back salto.
In level 8, 9, and 10, there is a 0.10 compositional deduction for failure to perform saltos or aerials both backward and sideward/front, but even if someone just tumbles backward, they can throw in a front or side aerial or a front tuck/side-somi as a little side pass, and done.
It's also easier to get bonus from combinations of front tumbles, but you can get bonus through series with a whip or dance series. In level 10, many of the top gymnasts do big D and E valued back tumbling skills for bonus.
So yes, pretty doable once you survive level 7.