NBCT Mathematics AYA Component 1 Practice Test 2026 – Complete Exam Preparation

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What is the value associated with the prefix deci-?

0.01

1

0.1

The value associated with deci- is 0.1. Deci- is a metric prefix meaning one tenth of the base unit. In the decimal system, prefixes represent powers of ten, and deci- corresponds to 10^-1, which equals 0.1. So a decimeter is one tenth of a meter, a deciliter is one tenth of a liter, and so on. This is smaller than the base unit but larger than prefixes like centi- (0.01) and milli- (0.001).

0.001

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