EDUCATION
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Test your problem solving skills in basic arithemetic aptitude questions. Understand concepts and logic for each questions to answer correctly. practice more and more questions to give answers rapidly. Sharp your brain before you start solving problems.
S.No
Operation
Description
Example
1
Addition
Combination of two or more numbers
7 + 5 = 12
2
Subraction
Finding the difference between two numbers
15 - 7 = 8
3
Multiplication
Repeated addition of the same number
4 × 3 = 12
4
Division
Splitting a number into equal parts
20 ÷ 4 = 5
S.No
PEMDAS
BODMAS
1
P: Parentheses
B: Brackets
2
E: Exponents
O: Orders
3
M: Multiplication
D: Division
4
D: Division
M: Multiplication
5
A: Addition
S: Subtraction
6
A: Addition
S: Subtraction
Example: To solve this calculation 2 + 3 × (5 - 2)2
S.No
Operation
Description
Example
1
Factors
Numbers that divide exactly into another number
Factors of 12 are 1, 2, 3, 4, 6, and 12
2
Multiples
Numbers that can be obtained by multiplying a number by an integer
Multiples of 3 are 3, 6, 9, 12, etc
S.No
Operation
Description
Example
1
Prime Numbers
Numbers greater than 1 with only two factors: 1 and itself
2, 3, 5, 7, 11
2
Composite Numbers
Numbers greater than 1 with more than two factors
4, 6, 8, 9, 10
S.No
Operation
Description
Example
1
Divisibility by 2
The number is divisible by 2
2, 4, 6, 8 ...
2
Divisibility by 3
The sum of the digits is divisible by 3
3, 6, 9, 12, 15 ...
3
Divisibility by 5
The number ends in 0 or 5
5, 10, 15, 20, 25 ...
4
Divisibility by 10
The number ends in 0
10, 20, 30, 40, 50 ...
S.No
Operation
Description
Example
1
Greatest Common Divisor (GCD)
The largest number that divides two or more numbers without leaving a remainder
GCD of 18 and 24 is 6
2
Least Common Multiple (LCM)
The smallest number that is a multiple of two or more numbers
LCM of 4 and 5 is 20
S.No
Operation
Description
Example
1
Square of a number
The largest number that divides two or more numbers without leaving a remainder
52 = 25
2
Square Root
A number that, when multiplied by itself, gives the original number
√25 = 5
3
Exponent
It indicates how many times a number (base) is multiplied by itself
23 = 2 × 2 × 2 = 8
4
Fractions
A part of a whole, expressed as numerator/denominator
1/4, 3/8
4
Decimals
Another way to represent fractions, based on powers of 10.
0.25, 1.75
5
Percentages
A fraction of 100, used to express ratios
25% = 25/100 = 0.25