MULTIPLICATION AND DIVISION - BLOG 2
MULTIPLICATION-2
GOOD DAY STUDENTS !!
Today let us start with the topic :-
MULTIPLICATION FACTS / PROPERTIES OF MULTIPLICATION
( Copy only the properties of multiplication (1-5) in your copy)
1) ORDER PROPERTY:-
The product of two numbers does not change when the order of the numbers is changed.
eg :- 37 x 62 = 62 x 37
2) GROUPING PROPERTY:-
The product of three numbers does not change when the grouping of the numbers is changed.
eg:- ( 55 x 41 ) x 71 = 55 x (41 x 71)
3)MULTIPLICATIVE PROPERTY OF ONE:-
A number multiplied by one = The number itself
eg :- 672 x 1 = 672
4) MULTIPLICATIVE PROPERTY OF ZERO :-
A number multiplied by zero is equal to zero
eg :- 74493948 x 0 = 0
5) MULTIPLICATION BY 10, 100, 1000 :-
When we multiply a number by any multiples of 10 like 10, 100,1000 etc , we only have to add the zeros in the multiplier to get the product.
eg:-
56 x 10 = 560
97585 x 100 = 9758500
53845 x 1000 = 53845000
So now let us start with Ex 3.1
1. FILL IN THE BLANKS ( Do in your copy)
a) 2412 x 10 =____
b) 1896 x 100 =____
c) 52 x 1000 =____
d) 12 x 20 = ____
( this can also be written as 12 x 10 x 2)
e) 60 x 70 = ___
f) 538 x ____ = 538
g) 1238 x _____ = 0
2) MULTIPLY:-
a) 2615 x 26
2615
26
15690
52300
67990
b) 3058 x 45
3058
45
15250
122320
137610
c) 6312 x 68
6312
68
150496
378720
429216
Now see how we do multiplication with 3 digits:-
d) 7629 x 833
7629
833
22887
228870
6103200--- this line is obtained by multiplying 8 with 7629.
6354957
Now do (f) and (e ) as HW
e) 3259 x 123
f) 5809 x 323
That is all for today . Have a good day !
GOOD DAY STUDENTS !!
Today let us start with the topic :-
MULTIPLICATION FACTS / PROPERTIES OF MULTIPLICATION
( Copy only the properties of multiplication (1-5) in your copy)
1) ORDER PROPERTY:-
The product of two numbers does not change when the order of the numbers is changed.
eg :- 37 x 62 = 62 x 37
2) GROUPING PROPERTY:-
The product of three numbers does not change when the grouping of the numbers is changed.
eg:- ( 55 x 41 ) x 71 = 55 x (41 x 71)
3)MULTIPLICATIVE PROPERTY OF ONE:-
A number multiplied by one = The number itself
eg :- 672 x 1 = 672
4) MULTIPLICATIVE PROPERTY OF ZERO :-
A number multiplied by zero is equal to zero
eg :- 74493948 x 0 = 0
5) MULTIPLICATION BY 10, 100, 1000 :-
When we multiply a number by any multiples of 10 like 10, 100,1000 etc , we only have to add the zeros in the multiplier to get the product.
eg:-
56 x 10 = 560
97585 x 100 = 9758500
53845 x 1000 = 53845000
So now let us start with Ex 3.1
1. FILL IN THE BLANKS ( Do in your copy)
a) 2412 x 10 =____
b) 1896 x 100 =____
c) 52 x 1000 =____
d) 12 x 20 = ____
( this can also be written as 12 x 10 x 2)
e) 60 x 70 = ___
f) 538 x ____ = 538
g) 1238 x _____ = 0
2) MULTIPLY:-
a) 2615 x 26
2615
26
15690
52300
67990
b) 3058 x 45
3058
45
15250
122320
137610
c) 6312 x 68
6312
68
150496
378720
429216
Now see how we do multiplication with 3 digits:-
d) 7629 x 833
7629
833
22887
228870
6103200--- this line is obtained by multiplying 8 with 7629.
6354957
Now do (f) and (e ) as HW
e) 3259 x 123
f) 5809 x 323
That is all for today . Have a good day !
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