Big Ideas Chapter 1 Review

Front

What is rounding?

Back

Rounding is the process of adjusting the digits of a number to make it simpler while keeping its value close to what it was. For example, rounding 583,200 to the nearest thousand gives 583,000.

Front

How do you round a number to the nearest thousand?

Back

To round a number to the nearest thousand, look at the hundreds digit. If it is 5 or more, round up. If it is 4 or less, round down.

Front

What is 10^3?

Back

10^3 means 10 multiplied by itself three times, which equals 1,000.

Front

If Rikkie has 10^3 rings and gives away 10^2 rings, how many rings does she have left?

Back

Rikkie has 10^3 - 10^2 = 1,000 - 100 = 900 rings left.

Front

What does 10^7 represent in terms of money?

Back

10^7 represents 10 million dollars, which is written as $10,000,000.

Front

How do you round a decimal to the nearest tenth?

Back

To round a decimal to the nearest tenth, look at the hundredths place. If it is 5 or more, round up the tenths place. If it is 4 or less, keep the tenths place the same.

Front

What is the nearest tenth of 0.118?

Back

The nearest tenth of 0.118 is 0.1.

Front

What is a number less than 6,789?

Back

6,432 is a number that is less than 6,789.

Front

What is the value of 10^2?

Back

10^2 means 10 multiplied by itself two times, which equals 100.

Front

What is the difference between 10^3 and 10^2?

Back

The difference is 10^3 - 10^2 = 1,000 - 100 = 900.