Blog
Clear, practical explainers on everyday conversions, calculations, and tasks - each one linked to a free tool you can use right away.
How to Operate a Scientific Calculator
Learn the basics of a scientific calculator - order of operations, degree vs radian mode, and what the common function keys actually do.
How to Use a Graphing Calculator
Learn the basics of using a graphing calculator - entering a function, setting the viewing window, and reading the graph - with a free tool to try it on.
How to Do Fractions on a TI-84 Plus
Learn two ways to work with fractions on a TI-84 Plus - converting a decimal answer to a fraction, and entering one directly with the fraction template.
How to Type Fractions Into a Calculator
Learn the two ways to enter a fraction on a calculator - a dedicated fraction key or the divide key - plus a free calculator that skips the guesswork.
How to Read a Ruler in CM and MM
Learn how to read both centimeters and millimeters on a metric ruler, how the two units relate, and how to measure precisely with a free online ruler.
How to Read a Ruler
Learn how to read the markings on a ruler and how to measure accurately, with a free online ruler you can use to practice on real objects.
4/3 as a Decimal
4/3 as a decimal is 1.333..., a repeating decimal. Here's why it never ends, how to round it, and a free calculator for converting any fraction.
3 3/4 as a Decimal
3 3/4 as a decimal is 3.75. Here's the fast way to convert a mixed number, and a free calculator for checking your work.
4 3/4 as a Decimal
4 3/4 as a decimal is 4.75. Here's how to convert a mixed number step by step, plus a free calculator for checking any other fraction.
1 1/8 as a Decimal
1 1/8 as a decimal is 1.125. Here's the step-by-step method for converting any mixed number, plus a free calculator to check your work.
8 3/8 as a Decimal
8 3/8 as a decimal is 8.375. Here's the fast way to convert a mixed number, and a free calculator for checking your work.
3 3/8 as a Decimal
3 3/8 as a decimal is 3.375. Here's how to convert a mixed number step by step, plus a free calculator for checking any other fraction.
8 5/8 as a Decimal
8 5/8 as a decimal is 8.625. Here's the fast way to convert a mixed number, and a free calculator for checking your work.
5 5/8 as a Decimal
5 5/8 as a decimal is 5.625. Here's how to convert a mixed number step by step, plus a free calculator for checking any other fraction.
5/8 as a Decimal
5/8 as a decimal is 0.625. Here's the fast conversion method, where 5/8 falls on a ruler, and a free calculator for converting any other fraction.
.875 as a Fraction
.875 as a fraction is 7/8. Here's the place-value method, how to simplify 875/1000 down to 7/8, and a free calculator for converting any other decimal.
3/8 as a Decimal
3/8 as a decimal is 0.375. Here's the quick division method, why it terminates instead of repeating, and a free calculator for converting any other fraction.