Designed to align with 3rd grade math TEKS (very similar to Common Core), keeping those tricky, commonly-skimmed standards in mind! Embedded are 9 activities designed to refresh and review 3rd grade math skills for test season. Standards include:
ordering and comparing fractions with common denominators
identifying fractions using a group as the whole
rounding whole numbers & estimating sums and differences
subtraction with regrouping through 999
identifying multiplication as repeated addtion
identifying area of a rectangle
finding perimeter of a rectangle
addition story/word problems using thinking blocks to model
multiplication (and division written as multiplication) fact fluency
 
Notes:
note necessarily grade-specific, intended use is to instead align to students' skills 
PDF file includes embedded links to games and 1 Google Sheet (will open as Excel if using Microsoft/non-Google browser)
Sites used are generally accessible on student devices in most districts
No usernames or student logins required