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<blockquote data-quote="dinu_rashi" data-source="post: 3283827" data-attributes="member: 104833">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
 Math Tips&nbsp;&nbsp; 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; Here are some “how-to’s” that will come in handy.&nbsp; 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; How to Round a Number
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; To the nearest&nbsp; ten
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; If the ones digit is 5 or more, round to the next highest ten (68&nbsp; rounds to 70).
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; If the ones digit is less than 5, round to the next lowest ten (33&nbsp; rounds to 30).
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; <img src="http://www.how-to-study.com/mathtips_1.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" />To&nbsp; the nearest hundred
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; If&nbsp; the tens digit is 5 or more, round to the next highest hundred (384 rounds to&nbsp; 400).
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; If&nbsp; the tens digit is less than 5, round to the next lowest hundred (427 rounds to&nbsp; 400).
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; To&nbsp; the nearest thousand
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; If&nbsp; the hundreds digit is 5 or more, round to the next highest thousand (7,602&nbsp; rounds to 8,000).
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; If&nbsp; the hundreds digit is less than 5, round to the next lowest thousand (7,268&nbsp; rounds to 7,000).
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; How to Find an&nbsp; Average
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; To find the average of several numbers, add the numbers together and then divide the sum by the number of numbers. 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; The average&nbsp; of 17, 30, 6, and 7 = 60 ÷ 4 =&nbsp; 15
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; How to Tell if Two&nbsp; Fractions are Equivalent
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; Cross multiply the fractions.&nbsp; If both products are the same, the fractions&nbsp; are equivalent. 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; 3 and &nbsp; 9 &nbsp; &nbsp; &nbsp; 3 x 24 = 72&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; 3 and&nbsp; 9&nbsp; are equivalent fractions. 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 8&nbsp; &nbsp; &nbsp; &nbsp;&nbsp; 24&nbsp; &nbsp; &nbsp;&nbsp; 8 x 9&nbsp;&nbsp; = 72&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; 8&nbsp; &nbsp; &nbsp; &nbsp;&nbsp; 24
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; 5&nbsp; and&nbsp; 3&nbsp; &nbsp; &nbsp;&nbsp; 5 x12 = 60&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 5&nbsp;&nbsp; and 3&nbsp;&nbsp; are not equivalent fractions. 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 8&nbsp; &nbsp; &nbsp; &nbsp;&nbsp; 12&nbsp; &nbsp; &nbsp;&nbsp; 8 x 3 = 24&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; 8&nbsp; &nbsp; &nbsp; &nbsp;&nbsp; 12
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; <img src="http://www.how-to-study.com/mathtips_2.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" />How to Find a Percentage
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; To tell what percentage one number is of a second number, divide the first number by the second.&nbsp; Move the decimal point of the resulting quotient two places to the right.
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; Example:&nbsp; What percentage is 20 of&nbsp; 300?
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 20 ÷ 300 = .067&nbsp; =&nbsp; 6.7%
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; How to Change a Fraction to a&nbsp; Percentage
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; Divide the numerator by the denominator.&nbsp; Move the decimal point of the resulting&nbsp; quotient two places to the right.
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; 6&nbsp; &nbsp;&nbsp; =&nbsp; &nbsp; 6 ÷ 15 = .4 = .40 = 40%
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 15
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; How to Change a Decimal to a Percentage
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; Move the decimal point two places to the right.
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; 0.792 = 79.2%
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; Refer to these how-to’s until&nbsp; you can do them automatically.
&nbsp; &nbsp; &nbsp; &nbsp;&nbsp; </blockquote>

[QUOTE="dinu_rashi, post: 3283827, member: 104833"] [INDENT][CENTER] [FONT=Comic Sans MS][SIZE=3][COLOR=Green] [U][B]Math Tips [/B][/U][/COLOR][/SIZE][/FONT][/CENTER] [FONT=Comic Sans MS][SIZE=3][COLOR=Green]Here are some “how-to’s” that will come in handy. [/COLOR][/SIZE][/FONT] [FONT=Comic Sans MS][SIZE=3][COLOR=Green][B]How to Round a Number[/B][/COLOR][/SIZE][/FONT] [FONT=Comic Sans MS][SIZE=3][COLOR=Green][U]To the nearest ten[/U][/COLOR][/SIZE][/FONT] [FONT=Comic Sans MS][SIZE=3][COLOR=Green]If the ones digit is 5 or more, round to the next highest ten (68 rounds to 70). If the ones digit is less than 5, round to the next lowest ten (33 rounds to 30).[/COLOR][/SIZE][/FONT] [FONT=Comic Sans MS][SIZE=3][COLOR=Green][U][IMG]http://www.how-to-study.com/mathtips_1.gif[/IMG]To the nearest hundred[/U][/COLOR][/SIZE][/FONT] [FONT=Comic Sans MS][SIZE=3][COLOR=Green]If the tens digit is 5 or more, round to the next highest hundred (384 rounds to 400). If the tens digit is less than 5, round to the next lowest hundred (427 rounds to 400).[/COLOR][/SIZE][/FONT] [FONT=Comic Sans MS][SIZE=3][COLOR=Green][U]To the nearest thousand[/U][/COLOR][/SIZE][/FONT] [FONT=Comic Sans MS][SIZE=3][COLOR=Green]If the hundreds digit is 5 or more, round to the next highest thousand (7,602 rounds to 8,000). If the hundreds digit is less than 5, round to the next lowest thousand (7,268 rounds to 7,000).[/COLOR][/SIZE][/FONT] [FONT=Comic Sans MS][SIZE=3][COLOR=Green][B]How to Find an Average[/B][/COLOR][/SIZE][/FONT] [FONT=Comic Sans MS][SIZE=3][COLOR=Green]To find the average of several numbers, add the numbers together and then divide the sum by the number of numbers. [/COLOR][/SIZE][/FONT] [FONT=Comic Sans MS][SIZE=3][COLOR=Green] The average of 17, 30, 6, and 7 = 60 ÷ 4 = 15[/COLOR][/SIZE][/FONT] [FONT=Comic Sans MS][SIZE=3][COLOR=Green][B]How to Tell if Two Fractions are Equivalent[/B][/COLOR][/SIZE][/FONT] [FONT=Comic Sans MS][SIZE=3][COLOR=Green]Cross multiply the fractions. If both products are the same, the fractions are equivalent. [/COLOR][/SIZE][/FONT] [FONT=Comic Sans MS][SIZE=3][COLOR=Green][U]3[/U] and [U] 9 [/U] 3 x 24 = 72 [U]3[/U] and [U] 9[/U] are equivalent fractions. 8 24 8 x 9 = 72 8 24[/COLOR][/SIZE][/FONT] [FONT=Comic Sans MS][SIZE=3][COLOR=Green][U]5[/U] and [U] 3[/U] 5 x12 = 60 [U]5[/U] and [U] 3[/U] are [U]not[/U] equivalent fractions. 8 12 8 x 3 = 24 8 12[/COLOR][/SIZE][/FONT] [FONT=Comic Sans MS][SIZE=3][COLOR=Green][B][IMG]http://www.how-to-study.com/mathtips_2.gif[/IMG]How to Find a Percentage[/B][/COLOR][/SIZE][/FONT] [FONT=Comic Sans MS][SIZE=3][COLOR=Green]To tell what percentage one number is of a second number, divide the first number by the second. Move the decimal point of the resulting quotient two places to the right.[/COLOR][/SIZE][/FONT] [FONT=Comic Sans MS][SIZE=3][COLOR=Green]Example: What percentage is 20 of 300? 20 ÷ 300 = .067 = 6.7%[/COLOR][/SIZE][/FONT] [FONT=Comic Sans MS][SIZE=3][COLOR=Green][B]How to Change a Fraction to a Percentage[/B][/COLOR][/SIZE][/FONT] [FONT=Comic Sans MS][SIZE=3][COLOR=Green]Divide the numerator by the denominator. Move the decimal point of the resulting quotient two places to the right.[/COLOR][/SIZE][/FONT] [FONT=Comic Sans MS][SIZE=3][COLOR=Green][U] 6[/U] = 6 ÷ 15 = .4 = .40 = 40% 15[/COLOR][/SIZE][/FONT] [FONT=Comic Sans MS][SIZE=3][COLOR=Green][B]How to Change a Decimal to a Percentage[/B][/COLOR][/SIZE][/FONT] [FONT=Comic Sans MS][SIZE=3][COLOR=Green]Move the decimal point two places to the right.[/COLOR][/SIZE][/FONT] [FONT=Comic Sans MS][SIZE=3][COLOR=Green]0.792 = 79.2%[/COLOR][/SIZE][/FONT] [FONT=Comic Sans MS][SIZE=3][COLOR=Green][B]Refer to these how-to’s until you can do them automatically.[/B][/COLOR][/SIZE][/FONT] [/INDENT] [/QUOTE]

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