4th Math STAAR Review

Front

What is expanded notation?

Back

Expanded notation is a way of writing numbers to show the value of each digit. For example, 14.83 can be written as 10 + 4 + 0.8 + 0.03.

Front

How do you find the value of a digit in a number?

Back

To find the value of a digit, multiply the digit by its place value. For example, in the number 9310, the value of the 3 is 3,000 because it is in the thousands place.

Front

What is the process to divide a total number of items evenly among groups?

Back

To divide evenly, you take the total number of items and divide it by the number of groups. For example, 1,092 people divided by 4 floors equals 273 people per floor.

Front

How do you calculate the time between two events?

Back

To calculate the time between two events, subtract the start time from the end time. For example, from 7:50 A.M. to 12:20 P.M. is 4 hours and 30 minutes.

Front

What is a data set?

Back

A data set is a collection of numbers or values that represent information. For example, the numbers 17, 18, 19, 21, 21, 24 are a data set.

Front

What does it mean for a number to be '10 times as much'?

Back

If a number is '10 times as much' as another number, you multiply that number by 10. For example, 10 times 931 is 9,310.

Front

What is the importance of place value in numbers?

Back

Place value determines the value of a digit based on its position in a number. For example, in 4,500, the 4 is in the thousands place, making it worth 4,000.

Front

How do you write a number in standard form?

Back

Standard form is writing a number using digits. For example, the number four thousand five hundred is written as 4,500.

Front

What is the difference between a whole number and a decimal?

Back

A whole number is a number without fractions or decimals, like 5. A decimal includes a point and represents a part of a whole, like 5.5.

Front

How do you round a number to the nearest ten?

Back

To round a number to the nearest ten, look at the digit in the ones place. If it's 5 or more, round up; if it's 4 or less, round down.