4th Grade Math Review Mid Year

Front

What is place value?

Back

Place value is the value of a digit based on its position in a number. For example, in the number 15.28, the '1' is in the tens place, so it represents 10.

Front

How do you compare decimal numbers?

Back

To compare decimal numbers, align the numbers by the decimal point and compare each digit from left to right. The first digit that differs determines which number is greater.

Front

What is the formula for finding the perimeter of a rectangle?

Back

The perimeter of a rectangle is found using the formula: P = 2(length + width).

Front

How do you add two numbers?

Back

To add two numbers, align them by their place values and add each column starting from the right, carrying over if necessary.

Front

What is a fraction?

Back

A fraction represents a part of a whole and is written as 'a/b', where 'a' is the numerator (part) and 'b' is the denominator (whole).

Front

What does it mean to convert a fraction to a decimal?

Back

Converting a fraction to a decimal involves dividing the numerator by the denominator.

Front

How do you calculate the total population given an increase?

Back

To calculate the total population after an increase, add the increase to the original population.

Front

What is the time duration between two times?

Back

To find the duration between two times, subtract the start time from the end time.

Front

What is the difference between tenths and hundredths in decimals?

Back

Tenths are the first digit to the right of the decimal point, while hundredths are the second digit to the right of the decimal point.

Front

How do you determine which fraction is greater?

Back

To determine which fraction is greater, you can convert them to a common denominator or convert them to decimals.