Benchmark 1 Review

Power of 10

100

What is the exponent form of 1,000? 

10³

200

What is 21 x 10³?

21,000

300

Write the expression of 7 x 1,000 using a power of ten.

7x10³

400

Identify all the ways to express 10⁴

10 x 10 x 10 x 10 OR 10,000

500

Describe the relationship between the base and the exponent. B^e

The exponent indicates how many times the base is multiplied to itself.

Comparing Decimals

100

 Which is greater, 0.75 or 0.57?

0.75

200

Compare eighty one and eighty one tenths. Which is larger? Why? 

81 tenths is 8.1, so 81 > 8.1

300

Which value is the greatest? 

A. nineteen tenths

B. thirty two hundredths

C. three hundred one thousandths 

A. nineteen tenths = 1.9 which is the greatest

400

Which decimal is less? 0.784 or 0.748

0.748

500

Arrange these decimals in order from least to greatest: 0.4, 0.09, 0.3.

0.09, 0.3, 0.4

Rounding Decimals

100

Round 5.432 to the nearest tenths place.

5.4

200

What is 891.426 rounded to the nearest hundredth?

891.43

300

How do you round 9.999 to the nearest whole number?

Each digit rounds up because it is greater than 5. 9.999 becomes 10. 

400

Round 47.82 to the nearest whole number. 

48 because the 8 tells the 7 to bump up 1 digit, so 47 becomes 48.

500

If you have 4.579, what is it rounded to the nearest hundredth?

4.58 because the 9 indicates for the 7 to bump up to 8. 

Expanded/Standard Form

100

What is the standard form of three hundred forty five and thirty-two thousandths?

345.032

200

What is 1.25 in expanded form? 

(1 x 1) + (2 x 1/10) + (5 x 1/100) = 1.25

300

What number is equivalent to (3 x 100) + (8 x 10) + (4 x 1/100) + (6 x 1/1000)

380.046

400

What is the standard form of the number that is represented as (5 x 100) + (2 x 10) + (3 x 1/10)?

520.3

500

What is 437.091 in expanded form? 

(4 x 100) + (3 x 10) + (7 x 1) + (9 x 1/100) + (1 x 1/1000)

Place Value

100

In the number 3.78, what place value does the 7 represent?

0.7 or 7 tenths 

200

4,000,000 is the same as 40 ______

40 hundred thousandths

300

In which number does 8 have a value that is 100 times greater than its value in 9,182?

A. 3,498.12

B. 28,456.10

C. 408.17

B. because 8,000 is 100 times greater than 80

400

The value of the 2 in 3.382 is ____ the value of the 2 in 81.32

1/10 of 

because 0.002 is ten times less than 0.002

500

What is the value of the digit 7 in 379,651? 

70 thousand or 70,000