Place Value and Rounding

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 345, the 3 is in the hundreds place, so it represents 300.

Front

What does rounding mean?

Back

Rounding means adjusting a number to the nearest specified value, often to make it simpler. For example, rounding 67 to the nearest ten gives you 70.

Front

How do you round a number ending in 5?

Back

When rounding a number that ends in 5, you round up to the next whole number. For example, 25 rounds to 30.

Front

What is the best estimate of the number 678?

Back

680

Front

How do you order numbers from least to greatest?

Back

To order numbers from least to greatest, compare each number and arrange them starting from the smallest to the largest.

Front

What is the best estimate for the number 898?

Back

900

Front

How do you find the total of several numbers?

Back

To find the total, add all the numbers together. For example, 28 + 82 + 110 = 220.

Front

What is the best estimate of 28 + 82 + 110?

Back

220

Front

How do you order numbers from greatest to least?

Back

To order numbers from greatest to least, compare each number and arrange them starting from the largest to the smallest.

Front

What is the greatest number in the set: 18,780; 19,625; 18,960?

Back

19,625