Fourth grade takes the facts learned in third and stretches them over more digits. These sheets pair a two-digit number with a single-digit one, so every problem is a 10-to-99 by 0-to-9 multiplication or division - the step where a student has to hold a partial product or a remainder in their head rather than recall an answer.
Twenty problems fit on a page, because each one is now several steps rather than one. Multiplication and division are both on, so the page moves between them; untick either above to spend a session on one.
Multi-digit multiplication and division, equivalent fractions and adding fractions with like denominators, decimal notation for tenths and hundredths, factors and multiples, and angle measurement.
Use the Long Division page, which lays the problems out in the bracket format with room to work underneath rather than as a single line.
Set Number of Digits to 2 in both value ranges for two-digit by two-digit problems, which is where fourth grade usually finishes up.
Yes, on the Division and Long Division pages there is a Remainders toggle. Fourth grade is normally where remainders are introduced.