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Math Glossary

Definition: **To increase **f**our times in size, **

strength, number, or amount.

To multiply by four or increase fourfold.

strength, number, or amount.

To multiply by four or increase fourfold.

Example: **the number five quadruple equal 20, **

because 5 x 4 = 20.

because 5 x 4 = 20.