Monday, September 21, 2009

More number of the day notes

Review half a number
- divide by 2
- make two equal parts
- find half of each digit
eg. 1749.863
half of 1000 is 500
half of 700 is 350
half of 40 is 20
half of 9 is 4.5
half of 0.8 is 0.4
half of 0.06 is 0.03
half of 0.003 is 0.0015
add them all 874.9315

You try 2579.357

Expanded Form Review
Write the true value of each digit.
eg. 2468.123
2000+400+60+8+0.1+0.02+0.003

Written Form Review
Write the number as it is said using only words. Remember that a decimal is said "and".
eg. two tousand four hundred sixty eight and one hundred twenty three thousandths.

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