Mathematics Concepts

Front

Decimal Places

Back

The number of digits after the decimal point. Example: 3.142 (3 decimal places), 1.5 (1 decimal place).

Front

Significant Figures

Back

The digits that carry meaning in a number, starting from the first non-zero digit. Example: 0.00456 (3 significant figures).

Front

Fractions as Decimals

Back

Converting fractions to decimal form. Example: 1/2 = 0.5, 1/4 = 0.25.

Front

Tolerance

Back

The allowable variation in the dimensions of a part. Example: If a shaft is specified to be 50 mm ± 0.05 mm, the upper limit is 50.05 mm and the lower limit is 49.95 mm.

Front

Upper Limit

Back

The maximum size a part can have and still meet specifications.

Front

Lower Limit

Back

The minimum size a part can have.

Front

Calculating Area of a Square

Back

A = s², where s is the side length.

Front

Calculating Area of a Rectangle

Back

A = l \times w, where l is the length and w is the width.

Front

Calculating Area of a Triangle

Back

Front

Calculating Area of a Circle

Back

A = \pi r², where r is the radius.