What is the number?
Change to standard form
Rounding
Which is bigger?
Math symbols
100

7 tens 

70

100

three hundred twenty-five

325

100

Round 54 to the nearest ten

50

100

246 OR 249

249

100

This symbol means multiply 

x

200

55 ones 

55

200

four thousand, two hundred seven 

4,207

200

Round 89 to the nearest ten

90

200

3,897 OR 3,890

3,897

200

This symbol separate three-digit periods in a number 

,

300

30 hundreds

3,000

300

40,000 + 3,000 + 500 + 60 + 9

43,569

300

Round 167 to the nearest one hundred

200

300

42,477 OR 42,407

42,407

300

This symbol separate hours from minutes 

:

400

300 tens 

3,000

400

sixteen thousand, four hundred fifty-three

16,453

400

Round 432 to the nearest one hundred 

400

400

63,000,50 OR 63,000,60

63,000,60

400

This symbol means divide (there are two)

Mrs. Morris will write on the board- yay!

500

500 hundreds 

50,000

500

one hundred thousand, three hundred four

100,304

500

Round 6,930 to the nearest thousand 

7,000

500

42,396 OR 42,299

42,396

500

This symbol separates the whole from the part in decimals (think money)

.