Decimal

High school (ages 12+)
Mathematics & Numbers

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/decimal

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the computational equivalence?Decimal arithmetic operations closely mirror integer arithmetic, simplifying computational processes
2. What is a decimal number?A decimal number is a way to write numbers that include a whole part and a fractional part, separated by a decimal point. The digits after the point represent tenths, hundredths, thousandths, and so on.
3. Who helped make decimals popular?Simon Stevin, a mathematician from the late 1500s, wrote a book called "De Thiende" that explained how to use decimals in everyday life and science.

Positional Notation: A number system where the value of a digit depends on its position within the number.
Rational Number: A number that can be expressed as a fraction p/q, where p and q are integers and q is not zero.
Irrational Number: A number that cannot be expressed as a simple fraction, such as pi or the square root of 2.