CA 1 Practice Flashcard

Front

What is expanded notation?

Back

Expanded notation is a way of writing numbers that shows the value of each digit. For example, 345 can be written as (3×100) + (4×10) + (5×1).

Front

How do you round a number to the tenths place?

Back

To round a number to the tenths place, look at the hundredths place. If it is 5 or more, round up the tenths place by one. If it is less than 5, keep the tenths place the same.

Front

What is the numeral for (3 x 1) + (4 x 0.1) + (6 x 0.01) + (2 x 0.001)?

Back

3.462

Front

How do you order numbers from greatest to least?

Back

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

Front

What is the best estimate for the cost of 7.8 pounds of watermelon at $3.05 per pound?

Back

$24

Front

What does the term 'numeral' mean?

Back

A numeral is a symbol or group of symbols that represents a number.

Front

What is the value of the digit 5 in the number 5,432?

Back

In the number 5,432, the value of the digit 5 is 5,000.

Front

How do you convert expanded notation to a numeral?

Back

To convert expanded notation to a numeral, add the values together. For example, (8×10) + (5×0.01) = 80 + 0.05 = 80.05.

Front

What is the difference between an estimate and an exact answer?

Back

An estimate is a rough calculation or approximation, while an exact answer is the precise value.

Front

What is the place value of the digit 6 in the number 3.462?

Back

In the number 3.462, the digit 6 is in the tenths place.