Week 2

Expanded form

100

1,792 in expanded form

1,000+700+90+2

200

1,789 in expanded form

1,000 + 700 +80+9

300

182,360 in expanded form

100,000 + 80,000 + 2,000 + 300 + 60 + 0

400

72,421, 723 in expanded form

70,000,000 + 2,000,000 + 400,000 + 700 + 20 +3

500

163,172,180 in expanded form

100,000,000 + 60,000,000 + 3,000,000 + 100,000 + 70,000 + 2,000 + 100 + 80 + 0

Addition

100

   360

+221

________

571

200

   173

+224

_____________

397

300

  1,670

+3,422

________

5,092

400

  10,783

+23,164

__________

33,947

500

  159,870,160

+230,110, 345

________________

389,980,505

Subtraction

100

  130

-   30

___________

100

200

   342

_ 120

_______

122

300

  163,345

-  32,130

__________

131,215

400

  175,340

-132,120

___________

43,220

500

  10,320

-  8,120

__________

2,200

Expanded form to Standard Form

100

300+20+ 3

323

200

1,000 +200 + 30 + 1

1,231

300

10,000 +3,000 + 100 + 30 +2

13,132

400

100,000 + 30,000 + 2,000 + 500 + 90+ 1

132, 591

500

300,000,000, 000 + 20,000,000 + 1,000,000 + 200,000 + 30,000 + 4,000 + 500 + 60 + 2

321,234,562

Surprise!!

100

How many more?

Subtraction

200

In all

Addition

300

How many?

Addition

400

Area

 Multiplication

500

Perimeter 

+