multiplication rules
TRANSCRIPT
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Multiplication and
Division
Rules to help!
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Multiplication and Division
are opposites
See the Family of Facts:
4 x 3 = 12
12 ÷ 3 = 4
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It’s all about Groups
Multiplication means groups of
Division means share into groups
e.g. 3 x 2 means 3 groups of 2
e.g. 6 ÷ 3 means 6 shared into 3 groups
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Multiplying by 0
When you multiply by 0 the
answer is always 0
e.g. 4 x 0 = 0
e.g. 57,000 x 0 = 0
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Multiplying by 1
When you multiply a number by 1, the
answer is always the same as the
number
e.g. 5 x 1 = 1 e.g. 3 x 1 = 3
e.g. 35 x 1 = 1
e.g. 23,000 x 1 = 23,000
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Multiplying by 2
Multiplying by 2 is the same as
Doubling or adding the
number to itself
e.g. 5 x 2 = 10
Double 5 is 10
5 + 5 = 10
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Dividing by 2
When you divide by 2 it is the
same as halving the number
e.g. 50 ÷ 2 = 25
Half of 50 is 25
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Multiplying by 4
If you want to quickly multiply
a number by 4, then just
double it twice!e.g. 6 x 4 = 24
double 6 is 12
double 12 is 24
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Multiplying by 5
The 5 times table is easy to learn,
if you remember that all answers
end in a 5 or a 0
5
10
1520 2
530
3540
45
50
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Multiplying by 10
When you multiply by 10, all
the digits move 1 place to the
left and a 0 is added.2 3
20 30
200 300
2000 3000
X 10X 10
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Thanks
Submitted by Adesh
Mumbai
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If you also want to share your own or your kid’s
presentation(ppt) please send it on [email protected]
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www.makemegenius.com– Full of ingredients to make your child a genius.
“Don’t make me read, make me understand “