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Friday, October 8, 2010
Multiplication Facts
When I was your age I was terrified of multiplication. What would you tell me about multiplication if you knew me in fourth grade to calm me down?
19 comments:
jadyn
said...
i learned that in the 9s when you dont no holw to count by nines you just pit 12345678 and then count back from 8 87654321 and then you got your nines.
There are alot of tricks for mutiplication. Here are some tricks 56=7*8 remember 5678,anything *0 is 0, anything *1 is its self ,the finger trick for *9, 12=3*4 remember 1234.
If you multiplie by nines there's turn around facts. If you see a zero and you multiplie it would be zero. If you count by two's you just double thee numbers. If you count by nines you should add the tens place. The ones place start at the nine and subtract all the way to zero.
We learned that when you multiply by 1 its the same number. When its just 10 take away the 0 and put a 9 in the zero's spot. Then you add the 0 and take away the 1. They have a turn around fact when you multiply by 9. Like when its 18 just turn it around and it turns in to 81. there are some tricks to like 56=8*7 look 5,6,7,8
you can do 9*1=9 and we do 9*2=18 but you can do trick but if you know it well but if you do a math test you cant do fingers but it is easy it is just like + but if you know + you can do it.but if you know it well you dont need tricks but you. can do it is very easy but you can 3*9=27 but is that easy.
when your counting by nines you always wanna do like when you write nines down on a piece of papper you always wanna do 12345678 and then count 87654321 and then there you go you counted by nines.
Anything *0 =0. Anything * 1 is it's original number. Anything * 10 ends with a zero. Little squares are 2*2=4 4*4=16. Squares that ryme are 5*5=25 6*6=36. 7*7=49 8*8=64 9*9=81 and 10*10=100. 12=3*4 remember 1 2 3 4.
Anytime you have a multiplication fact that has one times another number you get the same number you mutiplied with one. Anytime you mutiplied a number with zero you get zero. Every factor nine makes both digits added up makes the number nine. In nine facts the tens place adds one to it and the ones place it subtracts one number from it every time you go down one space on the mutiplication chart.
My multiplication is easy for me I know a lot of tricks. most of the tricks are 9's 9's are most easy for me like 9*6=54 it might not be that easy for some of you.I don't know a lot about the other tricks but I know alot about 9's you can do 9's on your hand if you know how to do 9's on your hand that's my advice for you.
I learned that 1s,2s,and 0s are the esyest to do. Here are some triks.If you have any thing * 1 it = its self. If you have any thing * 0 it = 0. If you hany thing * 2 it is the number + it self.
Did you if you have a multipulcation fact that has one time you get the same number. Evrebody knows facts like zero times anthin g is zero. when you do nine times nine if you know nine plus nine you can do it. Cause all you do is put put the egiht in front of the 1 and put the one in the back. Theb ones aren't compacted at all for exaample 30000 x 1 =30000 anything tomes on is excatly the same number
anything *0=0 anything *=that number. anything *10is that number but with one zero.anything * 100 is that number with two zeros. if two same numbers are multiplied together then what it = that is a square number.
These are some tips on multiplication facts. For exaple if you have 5*0 it would equle zero why because if you multipley any number by 0 it is going to equle zero. And if you multipley any number by one it is going to equle it's self. And if you multpley any number by two it is just like dobleing it. And if you multipley something by five it is going to end in five or zero.
There's a table chart of numbers and that can help you. There's alot of tricks you can learn for 9s,and other numbers. There's a multiplication problem thats called 56=7*8 and you can remeber it by 5,6,7,8.
I learned if you havthe number 10 in a multiplecation fact it will allwase have a 0 in it and we learnd how to multiply by 9s there are 2 wayse I know to multiply by 9s 1 way is to use your finger the second way is to line them up of wayes to multipy by 9s and there are turn around dacts to.
If you think multiplication fact are hard wail their is a easiy way to new 9 for a example 1, 19, 2, 18, 3, 27, 4, 36, 5, 45, 6, 54, 7, 63, 8,72,81, 10, 90. 56= 7*8 and their away to new this 5 6 7 8.
19 comments:
i learned that in the 9s when you dont no holw to count by nines you just pit 12345678 and then count back from 8 87654321 and then you got your nines.
There are alot of tricks for mutiplication. Here are some tricks 56=7*8 remember 5678,anything *0 is 0, anything *1 is its self ,the finger trick for *9, 12=3*4 remember 1234.
If you multiplie by nines there's turn around facts. If you see a zero and you multiplie it would be zero. If you count by two's you just double thee numbers. If you count by nines you should add the tens place. The ones place start at the nine and subtract all the way to zero.
A turn around fact is when you have a number but you just turn it around.
We learned that when you multiply by 1 its the same number. When its just 10 take away the 0 and put a 9 in the zero's spot. Then you add the 0 and take away the 1. They have a turn around fact when you multiply by 9. Like when its 18 just turn it around and it turns in to 81. there are some tricks to like 56=8*7 look 5,6,7,8
you can do 9*1=9 and we do 9*2=18 but you can do trick but if you know it well but if you do a math test you cant do fingers but it is easy it is just like + but if you know + you can do it.but if you know it well you dont need tricks but you. can do it is very easy but you can 3*9=27 but is that easy.
when your counting by nines you always wanna do like when you write nines down on a piece of papper you always wanna do 12345678 and then count 87654321 and then there you go you counted by nines.
Anything *0 =0. Anything * 1 is it's original number. Anything * 10 ends with a zero. Little squares are 2*2=4 4*4=16. Squares that ryme are 5*5=25 6*6=36. 7*7=49 8*8=64 9*9=81 and 10*10=100. 12=3*4 remember 1 2 3 4.
Anytime you have a multiplication fact that has one times another number you get the same number you mutiplied with one. Anytime you mutiplied a number with zero you get zero. Every factor nine makes both digits added up makes the number nine. In nine facts the tens place adds one to it and the ones place it subtracts one number from it every time you go down one space on the mutiplication chart.
My multiplication is easy for me I know a lot of tricks. most of the tricks are 9's 9's are most easy for me like 9*6=54
it might not be that easy for some of you.I
don't know a lot about the other tricks but I know alot about 9's you can do 9's on your hand if you know how to do 9's on your hand that's my advice for you.
I learned that 1s,2s,and 0s are the esyest to do. Here are some triks.If you have any thing * 1 it = its self. If you have any thing * 0 it = 0. If you hany thing * 2 it is the number + it self.
Did you if you have a multipulcation fact that has one time you get the same number. Evrebody knows facts like zero times anthin g is zero. when you do nine times nine if you know nine plus nine you can do it. Cause all you do is put put the egiht in front of the 1 and put the one in the back. Theb ones aren't compacted at all for exaample 30000 x 1 =30000 anything tomes on is excatly the same number
anything *0=0 anything *=that number. anything *10is that number but with one zero.anything * 100 is that number with two zeros. if two same numbers are multiplied together then what it = that is a square number.
These are some tips on multiplication facts. For exaple if you have 5*0 it would equle zero why because if you multipley any number by 0 it is going to equle zero. And if you multipley any number by one it is going to equle it's self. And if you multpley any number by two it is just like dobleing it. And if you multipley something by five it is going to end in five or zero.
There's a table chart of numbers and that can help you. There's alot of tricks you can learn for 9s,and other numbers. There's a multiplication problem thats called 56=7*8 and you can remeber it by 5,6,7,8.
I learned if you havthe number 10 in a multiplecation fact it will allwase have a 0 in it and we learnd how to multiply by 9s there are 2 wayse I know to multiply by 9s 1 way is to use your finger the second way is to line them up of wayes to multipy by 9s and there are turn around dacts to.
If you think multiplication fact are hard wail their is a easiy way to new 9 for a example 1, 19, 2, 18, 3, 27, 4, 36, 5, 45, 6, 54, 7, 63, 8,72,81, 10, 90.
56= 7*8 and their away to new this 5 6 7 8.
just think of it like +
The multiplication facts are starting out hard kind of but im getting use to it.
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