Topic 1 Practice Review

Topic 1 Practice Test Review

Powers of Ten

* Exponents tell # of times you multiply base
* Exponent = # of zeros
Ex:   $10^2$  = 10 x 10= 100

Multiple Select

Choose all (two) expressions that are equal to    $\ 6\ \times10^3$  

• 6 x 100

• 6 x 1,000

• 6 x 10,000

• 6x 10 x 10 x 10 

• 6 x 10 x 10 x10 x10 

Forms

• Standard- #s ( 12 . 39)

• Word/ Name- written ( Twelve and thirty-nine hundredth)

• Expanded- stretched out by Place Value                                                       ( 1x10) +     (2 x 1)  +      (3 x 0.1)      +   ( 9 x 0.01)       ALSO

   $\left(1\ \times10\right)+\left(2\ \times1\right)+\left(3\ \times\frac{1}{10}\right)+\left(9\times\frac{1}{100}\right)$ 

•                  **TIP:  put number on your PV chart 1st **

Multiple Choice

A national has eighty thousand, nine-hundred twenty-three and eight-six hundredths acres of land.

Which shows standard form?

• 80,923.086

• 80, 923.68

• 80,923.806

• 80,923.86

Multiple Choice

8) The weight of Darin's phone is 3.405 ounces.

What is expanded form?

• $3\ \times\ 1\ +\ 4\times\frac{1}{10}\ +\ 5\ \times\frac{1}{1000}$

• $3\ \times10\ +\ 4\times\frac{1}{10\ }+\ 5\times\frac{1}{1000}$

• $3\times10\ +\ 4\times\frac{1}{10\ }+\ 5\times\frac{1}{100}$

• $3\ \times\ 1\ +\ 4\times\frac{1}{100}\ +\ 5\times\frac{1}{1000}$

Value of Digits

Left: value 10x GREATER
Right: value LESS   $\frac{1}{10\ }$  of

Multiple Choice

Check  # if the digit in hundreds place is  $\frac{1}{10}$  of thousands place.

• 8,556

• 6,885

• 5,568

• 5,656

Fill in the Blanks

Mrs. Martin has $7,000 in her savings account.
Alonzo has  $\frac{1}{10}$  as much money as Mrs. Martin.

How much money does he have?

Multiple Select

0.006 0.06 0.6 6 __ __
Part A) What is next two numbers? 
Part B) What is the relationship between terms in this pattern? 

(choose 1 for each)

• Part A) 6, 60

• Part A) 60, 600

• Part A) $\ \frac{6}{10\ }\ \ \ \ \ \frac{6}{100}$  

  
  

• Part B) Each term  is 10 x greater

• Part B) Each term is 1/ 10 less

Compare Decimals

Line up decimals

Compare each PV L-> R

Multiple Select

Choose 3 true comparisons:

• 4.15 > 4.051

• 1.054 > 1.45

• 5.14 < 5.041

• 5.104 < 5.41

• 5.014 < 5.41

Multiple Select

Elaine has wire 2.16 m long.

Dikembe has wire 2.061 m long.

Part A) Whose wire is longer?

Part B) How can you tell?

* choose one for each part*

• A) Elaine

• A) Dikembe

• B) 2.1 < 2.0

• B) 2.1 > 2.0

Open Ended

Answer #6 here:

Luke shaded 20 squares. Bekka shaded 30 squares.

Part A - Write to decimals greater than Luke's AND less than Bekka's decimal.

Part B - Write two decimals equivalent to Luke's.

Multiple Choice

Kendra completed race in 15.839 sec.

Round to nearest tenth.

• 15

• 15.8

• 15.9

• 15.84