I post you here the review needed to study the first unit this year. See UNIT 1.
I also thought that it may be useful to have a vocabulary sheet for each unit, so that it can help you to understand the explanations in class. UNIT 1 VOCABULARY.
Watch this video to review the properties of integers:
Click on this website to go over the rational numbers.
See the bbc website to do in depth numbers, fractions, powers and roots.
Take care, and study hard.