7th grade review

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What is percentage decrease?

Back

Percentage decrease is a measure of how much a quantity has decreased in relation to its original amount, expressed as a percentage. It is calculated using the formula: \( \text{Percentage Decrease} = \frac{\text{Original Value} - \text{New Value}}{\text{Original Value}} \times 100 \)

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How do you find the next row in a number pattern?

Back

To find the next row in a number pattern, identify the rule or relationship between the numbers in the current row and apply it to generate the next set of numbers.

Front

What is the simplified value of -2.6 + 5.8?

Back

The simplified value is 3.2.

Front

How do you add fractions with different denominators?

Back

To add fractions with different denominators, find a common denominator, convert each fraction, and then add the numerators. Simplify if necessary.

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Back

Front

How do you subtract fractions?

Back

To subtract fractions, find a common denominator, convert each fraction, and then subtract the numerators. Simplify if necessary.

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Back

Front

What is a fraction?

Back

A fraction represents a part of a whole and consists of a numerator (top number) and a denominator (bottom number).

Front

What is a common denominator?

Back

A common denominator is a shared multiple of the denominators of two or more fractions, allowing them to be added or subtracted.

Front

What does it mean to simplify a fraction?

Back

To simplify a fraction means to reduce it to its lowest terms, where the numerator and denominator have no common factors other than 1.