Number Sense Quiz Review

Place/powers of 10

100

Write in standard form:

10⁶

1, 000, 000

200

Write in exponential form:

1 billion

10⁹

300

What is the value of 10⁰?

1

400

1.234

Which digit is in the tenths place?

2

500

Write in proper word form: 34, 000, 000.012

Thirty four million and twelve thousandths.

Decimals

100

Find the value:

4.5 x 10, 000

45, 000

200

Compare the following values:

3.146 ____ 3.088

3.146 > 3.088

300

Find the value:

280 x 10⁴

2, 800, 000

400

Find the value:

0.8 ÷ 0.1

8

500

Find the value:

8.99 ÷ 10^-3

8, 990

Expanded

100

Represent in expanded form with powers of 10:

4, 500.7

(4 x 10³) + (5 x 10²) + (7 x 10^-1)

200

Represent in expanded form with powers of 10:

75, 804, 221

(7 x 10⁷) + (5 x 10⁶) + (8 x 10⁵) + (4 x 10³) + (2 x 10²) + (2 x 10¹) + (1 x 10⁰)

300

Represent in expanded form with powers of 10:

0.0667

(6 x 10^-2) + (6 x 10^-3) + (7 x 10^-4)

400

Represent the following in standard form:

(8 x 10⁴) + (3 x 10³) + (5 x 10²) + (6 x 10¹)

83, 560

500

Represent in standard form:

(8 x 10⁶) + (9 x 10³) + (7 x 10²) + (5 x 10^o) + (3 x 10^-1) + (6 x 10^-2)

8, 009, 705.36

Squares

100

List all the perfect squares between 10 and 50.

16, 25, 36, 49

200

Draw and label a perfect square that has a width of 3 units.

(Many answers)

300

What is the square root symbol called? 

Draw it.

Radical sign.

⎷

400

Explain why 50 is not a perfect square.

The square root of 50 is not a whole number.

There is no whole number that can be multiplied by itself to equal 50.

The closest perfect square is 7² = 49.
The next is 8² = 64.

500

Find the value:

⎷81 + ⎷121

9 + 11

= 20

Rounding

100

Round to the nearest whole:

45, 871.29

45, 871

200

Round to the nearest hundred:

43, 872

43, 900

300

Round to the nearest hundredth

12.385

12.39

400

Round to the nearest tenth:

811.982

812.0

500

Round to the nearest ten thousand:

34, 174, 194

34, 170, 000