The TEAS is changing the math section so that many of the questions won't actually need a calculator. They wouldn't be that nice, right?!
For the new version of the test, you'll have a lot more math questions that ask you to, basically, show your work. You'll be given a multiple-step problem, and then you have to select the answer option that is the proper method--instead of actually answering with a number. Frankly, it's kinda hard!
The new version of the test also reduces the number of questions that rely on calculations. You'll still need to calculate with fractions and PEMDAS (order of operations), but you'll also need to know more about geometry and a little bit of stats.
In terms of the science section, earth science isn't a focus. You might see a question, but it's probably not a scored question. Instead, the science section is about 66 percent anatomy and physiology. The rest is mostly of biology, chemistry, and scientific method.
Overall, the new TEAS scaled to be as difficult as the old version. That way, nursing schools don't have to change their admissions requirements.
Hope this helps--and good luck studying!!