Topic 1 Place Value and Powers Vocabulary Quiz

Front

Place value of 5 in 5,734

Back

5,000

Answer explanation

In the number 5,734, the digit 5 is in the thousands place. Therefore, its place value is 5,000.

Front

Place value of 2 in 9.12

Back

0.02

Answer explanation

In the number 9.12, the digit 2 is in the hundredths place. This means its place value is 0.02, as it represents 2/100. Therefore, the correct answer is 0.02.

Front

Power of a number

Back

Times a base number is used as a factor

Answer explanation

The power of a number indicates how many times the base number is multiplied by itself. For example, in 2^3, the base 2 is used as a factor 3 times (2 x 2 x 2). Thus, the correct choice is that it tells you the number of times a base number is used as a factor.

Front

Value of 10^2

Back

100

Answer explanation

To find 10^2, we multiply 10 by itself: 10 x 10 = 100. Therefore, the correct answer is 100.

Front

Exponent meaning

Back

Number of times base is multiplied by itself

Answer explanation

The exponent indicates how many times the base number is multiplied by itself. For example, in 2^3, the base 2 is multiplied by itself 3 times: 2 x 2 x 2.

Front

Base in an exponent

Back

Number multiplied by itself

Answer explanation

The base in a number with an exponent is the number that will be multiplied by itself. For example, in 2^3, 2 is the base, indicating it is multiplied by itself three times.

Front

Expanded form of 5827

Back

(5 x 1000) + (8 x 100) + (2 x 10) + 7

Answer explanation

The expanded form of 5,827 is found by breaking it down into its place values: 5 represents 5,000 (5 x 1000), 8 represents 800 (8 x 100), 2 represents 20 (2 x 10), and 7 represents 7 (7 x 1). Thus, the correct choice is (5 x 1000) + (8 x 100) + (2 x 10) + 7.

Front

Tenths in place value

Back

One out of 10 equal parts of a whole

Answer explanation

The term "tenths" refers to one out of 10 equal parts of a whole. Therefore, Boe's statement about having one out of 10 parts confirms that the correct choice is "One out of 10 equal parts of a whole."

Front

Ruby's pie portion (decimal)

Back

0.3

Answer explanation

To convert the fraction 3/10 to a decimal, divide 3 by 10, which equals 0.3. Therefore, the decimal representation of the portion Ruby ate is 0.3.

Front

One out of 100 parts of a whole

Back

Hundredths

Answer explanation

One out of 100 equal parts represents 1/100, which is known as a hundredth. Therefore, the correct answer is hundredths.