Scroll:Real number system >> Four fundamental operations on integers >> saq (4399)


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)  

 Simplify   :   23 + 812 + 724


Answer:_______________




2)  

 Simplify   :   23 + 712 + 924


Answer:_______________




3)  

 Simplify   :   13 + 512 + 1124


Answer:_______________




4)  

 Simplify   :   53 + 612 + 1524


Answer:_______________




5)  

 Simplify   :   33 + 412 + 324


Answer:_______________




6)  

 Simplify   :   33 + 712 + 424


Answer:_______________




7)  

 Simplify   :   53 + 712 + 1424


Answer:_______________




8)  

 Simplify   :   43 + 812 + 724


Answer:_______________




9)  

 Simplify   :   33 + 212 + 624


Answer:_______________




10)  

 Simplify   :   13 + 712 + 724


Answer:_______________




 

1)  

 Simplify   :   23 + 812 + 724

Answer: 138


SOLUTION 1 :

=     23 + 812 + 724  

LCM of 3 12 .24 is  24

=  [(2x8) +(8x2) + (7x1)] / 24

= (16+16+7)24

 = (39)24

 = 138

 



2)  

 Simplify   :   23 + 712 + 924

Answer: 138


SOLUTION 1 :

=     23 + 712 + 924  

LCM of 3 12 .24 is  24

=  [(2x8) +(7x2) + (9x1)] / 24

= (16+14+9)24

 = (39)24

 = 138

 



3)  

 Simplify   :   13 + 512 + 1124

Answer: 2924


SOLUTION 1 :

=     13 + 512 + 1124  

LCM of 3 12 .24 is  24

=  [(1x8) +(5x2) + (11x1)] / 24

= (8+10+11)24

 = (29)24

 = 2924

 



4)  

 Simplify   :   53 + 612 + 1524

Answer: 6724


SOLUTION 1 :

=     53 + 612 + 1524  

LCM of 3 12 .24 is  24

=  [(5x8) +(6x2) + (15x1)] / 24

= (40+12+15)24

 = (67)24

 = 6724

 



5)  

 Simplify   :   33 + 412 + 324

Answer: 3524


SOLUTION 1 :

=     33 + 412 + 324  

LCM of 3 12 .24 is  24

=  [(3x8) +(4x2) + (3x1)] / 24

= (24+8+3)24

 = (35)24

 = 3524

 



6)  

 Simplify   :   33 + 712 + 424

Answer: 74


SOLUTION 1 :

=     33 + 712 + 424  

LCM of 3 12 .24 is  24

=  [(3x8) +(7x2) + (4x1)] / 24

= (24+14+4)24

 = (42)24

 = 74

 



7)  

 Simplify   :   53 + 712 + 1424

Answer: 176


SOLUTION 1 :

=     53 + 712 + 1424  

LCM of 3 12 .24 is  24

=  [(5x8) +(7x2) + (14x1)] / 24

= (40+14+14)24

 = (68)24

 = 176

 



8)  

 Simplify   :   43 + 812 + 724

Answer: 5524


SOLUTION 1 :

=     43 + 812 + 724  

LCM of 3 12 .24 is  24

=  [(4x8) +(8x2) + (7x1)] / 24

= (32+16+7)24

 = (55)24

 = 5524

 



9)  

 Simplify   :   33 + 212 + 624

Answer: 1712


SOLUTION 1 :

=     33 + 212 + 624  

LCM of 3 12 .24 is  24

=  [(3x8) +(2x2) + (6x1)] / 24

= (24+4+6)24

 = (34)24

 = 1712

 



10)  

 Simplify   :   13 + 712 + 724

Answer: 2924


SOLUTION 1 :

=     13 + 712 + 724  

LCM of 3 12 .24 is  24

=  [(1x8) +(7x2) + (7x1)] / 24

= (8+14+7)24

 = (29)24

 = 2924