Themeville Math Level 4
Grade 4 covers review of the Levels 1-3 (the first fifteen lessons); fractions; mixed numbers; addition/subtraction of fractions; factors; prime numbers; comparison/rounding of numbers; long division; decimals (tenths, hundredths, and addition/subtraction); big numbers; multiplication/division by 10 or 100; time calculations; word problems; area/perimeter.