Scroll:Real number system >> Real numbers Ex 1.3 >> saq (4426)


Written Instructions:

For each Multiple Choice Question (MCQ), four options are given. One of them is the correct answer. Make your choice (1,2,3 or 4). Write your answers in the brackets provided..

For each Short Answer Question(SAQ) and Long Answer Question(LAQ), write your answers in the blanks provided.

Leave your answers in the simplest form or correct to two decimal places.



 

1)  

 Multiply:                   ( use / )


49 of 252 =


Answer:_______________




2)  

 Multiply:                   ( use / )


65 of 25 =


Answer:_______________




3)  

 Multiply:                   ( use / )


12 of 800 =


Answer:_______________




4)  

 Multiply:                   ( use / )


810 of 40 =


Answer:_______________




5)  

 Multiply:                   ( use / )


48 of 208 =


Answer:_______________




6)  

 Multiply:                   ( use / )


63 of 27 =


Answer:_______________




7)  

 Multiply:                   ( use / )


12 of 100 =


Answer:_______________




8)  

 Multiply:                   ( use / )


210 of 20 =


Answer:_______________




9)  

 Multiply:                   ( use / )


48 of 216 =


Answer:_______________




10)  

 Multiply:                   ( use / )


63 of 30 =


Answer:_______________




 

1)  

 Multiply:                   ( use / )


49 of 252 =

Answer: 112


SOLUTION 1 :

Given:

  49 x 252 =

 

4x{s5}252
9

 

 = 28 x 4

           Ans = 112.

 



2)  

 Multiply:                   ( use / )


65 of 25 =

Answer: 30


SOLUTION 1 :

Given:

  65 x 25 =

 

6x25
5

 

 = 5 x 6

           Ans = 30.

 



3)  

 Multiply:                   ( use / )


12 of 800 =

Answer: 400


SOLUTION 1 :

Given:

  12 x 800 =

 

1x400 800
2

 

 = 400 x 1

           Ans = 400.

 



4)  

 Multiply:                   ( use / )


810 of 40 =

Answer: 32


SOLUTION 1 :

Given:

  810 x 40 =

 

8x4 40
10

 

 = 4 x 8

           Ans = 32.

 



5)  

 Multiply:                   ( use / )


48 of 208 =

Answer: 104


SOLUTION 1 :

Given:

  48 x 208 =

 

4x{s5}208
8

 

 = 26 x 4

           Ans = 104.

 



6)  

 Multiply:                   ( use / )


63 of 27 =

Answer: 54


SOLUTION 1 :

Given:

  63 x 27 =

 

6x27
3

 

 = 9 x 6

           Ans = 54.

 



7)  

 Multiply:                   ( use / )


12 of 100 =

Answer: 50


SOLUTION 1 :

Given:

  12 x 100 =

 

1x50 100
2

 

 = 50 x 1

           Ans = 50.

 



8)  

 Multiply:                   ( use / )


210 of 20 =

Answer: 4


SOLUTION 1 :

Given:

  210 x 20 =

 

2x2 20
10

 

 = 2 x 2

           Ans = 4.

 



9)  

 Multiply:                   ( use / )


48 of 216 =

Answer: 108


SOLUTION 1 :

Given:

  48 x 216 =

 

4x{s5}216
8

 

 = 27 x 4

           Ans = 108.

 



10)  

 Multiply:                   ( use / )


63 of 30 =

Answer: 60


SOLUTION 1 :

Given:

  63 x 30 =

 

6x10 30
3

 

 = 10 x 6

           Ans = 60.