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What is the number of decimal places of 17.009 and 5.78?
a) 3 and 1             
b) 2 and 2             
c) 3 and 2

c

Solution: 17.0 0 9 = 3 and 5.7 8 = 2



Which one among the following is like decimal?
a) 34.5,  310.10                 
b) 3.17,  10.25
c) 110.220, 5.4620                             
d) None of these

b

Solution: 3.1 7 decimal place number=  2
10.2 5 decimal place number = 2
Both are same. So b option is like decimals.



Like decimal of 14.653 is…………….
a) 14.3  
b) 30.65                
c) 175.332

c

Solution: 14.653 decimal place number= 3
Option “c” decimal place number = 2
Both are same. So “c” option is like decimals.



40.3 + 14.653 = ?
a) 54.953              
b) 54.656              
c) 54.683
d) 4.72

a

Solution: 1st make 40.3 like decimal = 40.300
40.300 + 14.653 = 54.953



33.7  ̶  29.8564 = ?
a) 4.5243              
b) 3.8436              
c) 3.4753

b

Solution: First make both like decimal, then 29.8564 subtract from 33.7000



Identify unlike decimal pairs?
a) 4.23,  4.573 
b) 29.34, 67.15  
c) 20.5, 210.5

a

Solution: b, c, d all has same decimal place number with each pair, but “a” have not same decimal place number.