Extended Form
Place Value
Count by...
Addition
Standard Form
100

What is 321 in extended form?

300  + 20 + 1 = 321

100

What number is in the 10's place?

                736

3

100

What is the missing number?

1, 2, 3, 4, 5, ___, 7, 8

6

100

5 + 3 = 

8

100

100 + 20 + 5

125

200

What is 286 in extended form?

200 + 80 + 6 = 286

200

What number is in the hundreds place?

           281

2

200

What is the missing number?

2, 4, 6, 8, ___, 12, 14, 16

10

200

10 + 4 = 

14

200

300 + 20 + 7

327

300

What is 839 in extended form? 

800 + 30 + 9 = 839

300

What number is in the one's place?

             937

7

300

What is the missing number?

10, 15, 20, 25, 30, ____, 40, 45, 50

35

300

9 + 5 =

14

300

600 + 80 + 1

681

400

What is 524 in extended form?

500 + 20 + 4 = 524

400

What number is in the hundreds place?

              729

7

400

What is the missing number?

20, 30, 40, 50, ___, 70 , 80, 90

60

400

8 + 7 = 

15

400

400 + 70 + 5

475

500

What is 481 in extended form?

400 + 80 + 1 = 481

500

What number is in the tens place?

             616

1

500

What is the missing number?

20, 22, 24, 26, ____, 30, 32, 34, 36, 38

28

500

11 + 9 =

20

500

700 + 60 + 5

765

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