Flashcards: Mastering Decimal Numbers and Operations — 18 cards

Decimal Number System — definition?

A base-10 system using digits 0-9.

Digit — role?

A symbol representing a value in a number.

Place Value — function?

Determines a digit's value based on position.

Number — composition?

A quantity represented by digits in the decimal system.

Radix — value?

The base of a number system; 10 for decimal.

Nueros Decimales — meaning?

Numbers with a decimal point representing parts of a whole.

Decimal Point — purpose?

Separates whole part from fractional part.

Place Value in Decimals — significance?

Values decrease by powers of 10 moving right.

Reading Decimal Numbers — process?

Pronounce whole part, say 'point,' then each digit.

Writing Decimals in Words — method?

State whole part, then fractional part, as words or fraction.

Converting Decimals & Fractions — how?

Write decimal over place value, then simplify.

Rounding Decimals — rule?

Adjust to nearest value at specified decimal place.

Adding Decimals — key step?

Align decimal points before adding.

Multiplying Decimals — process?

Multiply as whole numbers, then place decimal based on total decimal places.

Dividing Decimals — method?

Convert divisor to whole number, then divide, placing decimal correctly.

Place Value — importance?

Essential for understanding size and position of digits.

Decimal Point — role?

Separates whole number from fractional part.

Converting decimal to fraction — steps?

Write over place value, then simplify.