Math 180 Decimals and Integers B1

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What is a decimal?

Back

A decimal is a fraction expressed in a special form, where the denominator is a power of ten. It is used to represent numbers that are not whole numbers.

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How do you compare two decimals?

Back

To compare two decimals, align them by the decimal point and compare digit by digit from left to right.

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What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero. It does not include fractions or decimals.

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How do you convert a fraction to a decimal?

Back

To convert a fraction to a decimal, divide the numerator by the denominator.

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What does the number line represent?

Back

The number line is a visual representation of numbers in a straight line, where each point corresponds to a number.

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How do you add decimals?

Back

To add decimals, align the numbers by the decimal point and add as you would whole numbers, placing the decimal point in the sum.

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What is the difference between 8.43 and 8.425?

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8.43 is greater than 8.425 because when compared digit by digit, 4 is less than 3 in the thousandths place.

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What is a pan balance in math?

Back

A pan balance is a tool used to compare weights or values, often represented by equations in algebra.

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