Wednesday, 6 January 2016

Multiplication

   7 - Multiplicand
x 3 - Multiplier
-----
 21 - Product


Q1. Fill in the blanks.
1. Any number multiplied with the numeral the answer is the same number eg. 8x1 = 8.
2. Any number multiplied by o thousand is also zero eg 5x0 = 0.


Q2. Multiply.


   6                5
x 5             x 8
----            -----
30                40
Ans: 30    Ans 40




    H  T  U  
         4  1 
  x         3
------------
       1 2 3


Ans: 123




2.
H T  U
1
2 4
x     3
7 2
Ans: 72


3.
H T  U
1
1 8
x     2
3 6
Ans: 36




4.
H T  U
3
1 6
x     6
9 6
Ans: 96


5.
H T  U
1
2 8
x     2
5 6
Ans: 56




Q. Word Problems
1. There are 8 trees in a row. How many trees are there in 5 row?


There are    8 trees in a row
There are x 5 rows
                ----
There are  40 trees in five rows.


Ans: There are 40 trees in five rows.


2. There are 7 days in one week. How many days are there in four weeks?


There are   7 days in one week.
There are x4 weeks
               ----
There are   28 days in four weeks.


Ans: There are   28 days in all.




Q. Multiplication:


1.
T U
1
2 4
x   3
7 2
Ans: 72


2.
T U
3 0
x   4
12 0
Ans: 120


3.
T U
2
4 3
x   7
30 1
Ans:   301



Q. Solve the following word problem.


1. The cost of one pen is rs. 25. What is the cost of 5 such pens?


                                         T U
                                         2
The cost of one pen is rs  2 5
cost of 5 pens is rs          x   5
                                      -------
The cost of 5 pens is rs    125
bo
Ans the cost of 5 pens is rs 125.


2. There are 6 boys in a row. How many boys are there in 4 row?


                  T U
                  2
There are   1 6 boys in a row
There are x   4 rows
                 ------
There are    6 4 boys in four rows.


Ans: There are 64 boys in four rows.


Q. Solve


1.
H T  U
1
1 4 2
x     4
5 6 8
Ans: 568


2.
H T  U
1
1 0 6
x     3
3 1 8
Ans: 318


Q. Solve the following word problem


1. There are 24 fruits in a basket. How many are there in 3 baskets?


                  T U
                  1
There are   2 4 fruits in a basket
There are x   3 baskets
                 ------
There are    7 2 fruits in three baskets.


Ans: There are 7 2 fruits in three baskets.


2. There are 55 boys in a class. How many boys are there in 4 class?


                  T U
                  2
There are   5 5 boys in a class
There are x   4 class
                 ------
There are  2 2 0 boys in all


Ans: There are 220 boys in four class.


Q. Arrange vertical and solve.


1. 30 x 2


T U
3 0
x   2
6 0
Ans: 60


2. 46 x 4


T U
2
4 6
x   4
1 8 4
Ans: 184


3. 212 x 3


H T  U
2 1 2
x     3
6 3 6
Ans: 636


4. 150 x 5


H T  U
2
1 5 0
x     5
7 5 0
Ans: 750


Q. The cost of one pen is rs. 5. What is the cost of 60 such pens?


                                         T U
                                        
There are                          6 0 pens
cost of one pen rs          x   5
                                      -------
The cost of 60 pens is rs    300
bo
Ans the cost of 60 pens is rs 300.







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