Chapter 1 Math Review: Place Value

Place Value

100

What number is in the millions place?

564,879,320,012

9

200

What is the place and value of the 7 in this number?

675,898,002

ten millions place and value is 70,000,000

300

What is the place and value of the 0 in this number?

80,872

Thousands place and value is 0.

400

What is the place and value of the 1 in this number?

769,154,392

Hundred thousands and value is 100,000

500

What is the place and value of the 3 in this number?

3,878,346,982

billions and hundred thousands and value is 3,000,000,000 and 300,000

Expanded Form

100

Is this the correct way to write this number in expanded form?

569,053,234=

(5x100,000,000)+(6x10,000,000)+(9x 10,000)+(5x10,000)+ (3x1,000)+(2x100)+(3x10)+(4x1)

NO! 

(5x100,000,000)+(6x10,000,000)+(9x1,000,000)+(5x10,000)+ (3x1,000)+(2x100)+(3x10)+(4x1)

200

Write this number in expanded form:

6,090,534

(6x1,000,000)+(9x10,000)+(5x100)+(3x10)+(4x1)

300

Write this number in expanded form:

nine million four hundred three thousand six hundred sixteen

9,403, 616

(9x 1,000,000)+(4x100,000)+(3x1,000)+(6x100)+(1x10)+(6x1)

400

Write this number in expanded form:

seven hundred twenty million seven hundred three thousand two hundred ten

720,703,210

(7x100,000,000)+(2x10,000,000)+(7x100,000)+(3x1,000)+(2x100)+(1x10)

500

Write this number in expanded form.

500,001,080

(5x100,000,000)+(1x1,000)+(8x10)

Power of 10

100

Write this number product to this power of 10 problem. 

7x10⁶=

7,000,000

200

Solve: 907,000,000,000 ➗10^{7 =}

90,700

300

Find the missing piece.

__________x 10⁹=854,000,000,000

854

400

Find the missing piece.

189,044,000 ➗ _________=189,044

10³

500

Find the missing piece. 

_________➗ 10⁸=65,033

6,503,300,000,000

Estimate

100

Estimate the sum using front end estimation. 

   1,451

  4,544

+   989

---------------

1+4=5

5,000

200

Estimate the difference using rounding. 

    8,984

-   2,421

-----------

8,984=9,000

2,421=2,000

9,000-2,000=7,000

300

Estimate the difference using front end estimation.

    17,890

  -   5,789

-------------

1-0=1

10,000

400

Find the sum using rounding.

898+6,545+8,777=

898=1,000

6,545=7,000

8,777=9,000

1+7+9=17,000

500

Estimate.

(5,787,989 +4,355,090) - 855,431=

(6,000,000+4,000,000)=10,000,000

855,431=1,000,000

10,000,000-1,000,000=9,000,000

Properties

100

Name this property.

(73+92)+6=73+(92+6)=

Associative Property of Addition

200

Name this property. 

0+8,034=8,034

Identity Property of Addition

300

Name this subtraction rule. 

23-0=23

When the subtract hand is zero, the difference is equal to zero.

400

Name this property. 

62+8=8+62

Commutative Property of Addition.

500

Name this subtraction property.  

34-34=0

When the minuend is equal to the subtract end, the difference is zero.