Set 8

Front

What is a fraction?

Back

A fraction represents a part of a whole. It consists of a numerator (top number) and a denominator (bottom number). For example, in the fraction 1/2, 1 is the numerator and 2 is the denominator.

Front

How do you estimate the total when multiplying?

Back

To estimate the total when multiplying, round the numbers to the nearest ten or hundred and then multiply. This gives a quick approximation of the actual product.

Front

What is the process to find the duration between two times?

Back

To find the duration between two times, subtract the start time from the end time. If the minutes in the end time are less than the start time, borrow an hour.

Front

What does a number line represent?

Back

A number line is a straight line with numbers placed at equal intervals. It helps visualize the position of numbers and their relationships.

Front

What is the meaning of 'best estimate'?

Back

A best estimate is a rough calculation or approximation that is close to the actual value, often used when exact numbers are not necessary.

Front

How do you add fractions with different denominators?

Back

To add fractions with different denominators, first find a common denominator, convert the fractions, and then add the numerators.

Front

What is the significance of the numerator in a fraction?

Back

The numerator indicates how many parts of the whole are being considered. For example, in the fraction 3/4, 3 is the numerator, meaning 3 parts out of 4.

Front

How do you convert hours and minutes into just minutes?

Back

To convert hours and minutes into just minutes, multiply the number of hours by 60 and then add the minutes. For example, 2 hours and 30 minutes is 2*60 + 30 = 150 minutes.

Front

What is a proper fraction?

Back

A proper fraction is a fraction where the numerator is less than the denominator, such as 3/4.

Front

What is an improper fraction?

Back

An improper fraction is a fraction where the numerator is greater than or equal to the denominator, such as 5/4 or 6/6.