PLAYING WITH THE NUMBERS

EXERCISE - A

) In a 2 digit number, the unit digit is four times the ten's digit and the sum of the digit is 10. Find the number.

) Without performing a actual addition and division, write the quotient 86 + 68 is divided by

a) 11

b) 14

) Consider the number 73 and 37. Find the quotient if their difference is divided by

a)  9 

b) 4

) Without actual division , obtain the quotient when the difference of 863 and 368 is divided by

a) 11

b) 5

) In a two digit number , the digit at the unit place is double the digit at ten's place. The number exceeds the sum of its digit by 18. Find the number.

) In a 3 digit number, the ten's digit is thrice the unit digit and the hundreds digit is four times the unit digit. Find the number if sum of its digit 16.

) Without actual division, obtain the quotient when the difference of the number 569 and 965 is divided by 

a) 11 

b) 4

) Without actual division, find out the quotient when the sum of the numbers 167, 716 and 671 is divided by

a) 37 

b) 111 

) The product of two digit numbers is 2117. If the product of their unit digit is 27 and that of ten's digit is 14, find the numbers.    

EXERCISE - B

Find the value of lb B 32 a68 1 ABB 6a 679 using digits from 029 solve the puzzle send more money find the value of A and B to ab 1 b18 digits from one to 9 find the value of the letter find the value of a b c d e f g and given division aba1b 266 46 b 6369 859 B A 786

Divisibility test divisibility by 2 a number is divisible by 2 if it ends with 02468 divisibility by 3 a number is divisible by 3 sum of its digit is divisible by 3 divisibility by 4 the number divisible by 4 class 2 digit is the divisible by 4 or ends with 00 divisibility by 5 the number is divisible by 5 times zero and 5 divisibility by 6 a number is divisible by 6 if it is divisible by both the result divisibility by 9 December will be resolved by 9 divisibility by 10 a number is divisible by 10 if it ends with zero divisibility by 11 beginning from the left digit place alternatively the result of divisible by 11 to the number is divisible

Miscellaneous

1828 57 divisible by the 9 then what is the list value of a + b what list number should be subtracted from 26543 show that it is divisible by 30057x is a multiple of 2 X is digit what is the least value of X8 y1 is divisible by 9 then what is the list value of x + Y + Z if 2 6 4 3 6 3 is a multiple of 11 is the value of the difference between the smallest number in the largest two digit number divisible by 3 without actual division obtain the question on the difference of the number 3863 and 368 / 996 what are the possible one digit of an