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 / )


89 of 27 =


Answer:_______________




2)  

 Multiply:                   ( use / )


49 of 252 =


Answer:_______________




3)  

 Multiply:                   ( use / )


810 of 20 =


Answer:_______________




4)  

 Multiply:                   ( use / )


12 of 700 =


Answer:_______________




5)  

 Multiply:                   ( use / )


63 of 45 =


Answer:_______________




6)  

 Multiply:                   ( use / )


29 of 126 =


Answer:_______________




7)  

 Multiply:                   ( use / )


210 of 40 =


Answer:_______________




8)  

 Multiply:                   ( use / )


12 of 500 =


Answer:_______________




9)  

 Multiply:                   ( use / )


49 of 27 =


Answer:_______________




10)  

 Multiply:                   ( use / )


48 of 224 =


Answer:_______________




 

1)  

 Multiply:                   ( use / )


89 of 27 =

Answer: 24


SOLUTION 1 :

Given:

  89 x 27 =

 

8x27
9

 

 = 3 x 8

           Ans = 24.

 



2)  

 Multiply:                   ( use / )


49 of 252 =

Answer: 112


SOLUTION 1 :

Given:

  49 x 252 =

 

4x{s5}252
9

 

 = 28 x 4

           Ans = 112.

 



3)  

 Multiply:                   ( use / )


810 of 20 =

Answer: 16


SOLUTION 1 :

Given:

  810 x 20 =

 

8x2 20
10

 

 = 2 x 8

           Ans = 16.

 



4)  

 Multiply:                   ( use / )


12 of 700 =

Answer: 350


SOLUTION 1 :

Given:

  12 x 700 =

 

1x350 700
2

 

 = 350 x 1

           Ans = 350.

 



5)  

 Multiply:                   ( use / )


63 of 45 =

Answer: 90


SOLUTION 1 :

Given:

  63 x 45 =

 

6x15 45
3

 

 = 15 x 6

           Ans = 90.

 



6)  

 Multiply:                   ( use / )


29 of 126 =

Answer: 28


SOLUTION 1 :

Given:

  29 x 126 =

 

2x{s5}126
9

 

 = 14 x 2

           Ans = 28.

 



7)  

 Multiply:                   ( use / )


210 of 40 =

Answer: 8


SOLUTION 1 :

Given:

  210 x 40 =

 

2x4 40
10

 

 = 4 x 2

           Ans = 8.

 



8)  

 Multiply:                   ( use / )


12 of 500 =

Answer: 250


SOLUTION 1 :

Given:

  12 x 500 =

 

1x250 500
2

 

 = 250 x 1

           Ans = 250.

 



9)  

 Multiply:                   ( use / )


49 of 27 =

Answer: 12


SOLUTION 1 :

Given:

  49 x 27 =

 

4x27
9

 

 = 3 x 4

           Ans = 12.

 



10)  

 Multiply:                   ( use / )


48 of 224 =

Answer: 112


SOLUTION 1 :

Given:

  48 x 224 =

 

4x{s5}224
8

 

 = 28 x 4

           Ans = 112.