Number and quantity
Real and complex numbers, exponents, vectors, matrices. 22 practice problems, each with an animated walkthrough.
- 1Simplifying square roots
- 2Zero and negative exponents
- 3Fractional exponents
- 4Multiplying in scientific notation
- 5Rational and irrational numbers
- 6Finding the whole from a part and its percent
- 7Converting units of a rate
- 8Adding complex numbers
- 9Multiplying complex numbers
- 10Powers of i
- 11Vector arithmetic in component form
- 12Magnitude of a vector
- 13Matrix arithmetic
- 14Least common multiple
- 15Order of operations
- 16Adding fractions with unlike denominators
- 17Percent change
- 18Comparing numbers in different forms
- 19Rationalizing a denominator
- 20Dividing complex numbers