Quantitative Aptitude

Order of Operations with Exponents with practice worksheets PDF Download

by Bina singhNovember 29, 2021December 20, 20210

Order of Operations with Exponents The rule to evaluate the value of a mathematical expression that includes exponents [e.g. ( -6 ÷ 3) x 8 ], is PEMDAS . PEMDAS Stands for P: Parentheses, E: Exponents , M:Multiplication , D: Division, A: Addition and S: Subtraction. The following steps must be followed to solve a mathematical expression that includes an exponents: Step 1: Operations inside the parentheses should be solved first . Step 2: After performing operations inside of parenthesis , solve the exponents . Step 3: After the parentheses and the exponents, perform multiplication or division from left …

PEMDAS Examples: PEMDAS math rule, Definition , Examples and PEMDAS worksheet PDF Download

by Bina singhNovember 20, 2021December 25, 20210

PEMDAS math rule, Definition and PEMDAS examples What is ‘PEMDAS’ ? PEMDAS rule, Definition and PEMDAS examples ‘PEMDAS’ is an acronym for the order of operations. Each letter represent an operation to calculate the value of mathematical expressions. The operations included in the PEMDAS are performed from left to right. PEMDAS Stands for P: Parentheses, E: Exponents , M:Multiplication , D: Division, A: Addition and S: Subtraction P E M/D A/D Parentheses {} , [] , () Exponents multiplication /division (perform …

Find factors of a number (Definition, Properties, Formulas and Examples)

by Bina singhOctober 17, 2021December 9, 20210

Definition: factors of a number Factors are the numbers we multiply together to get another number. For example 30=5 x 6, here 5 and 6 are factors of 30. When a number divides another number exactly , then the divisor is called a factor of the dividend, and dividend is called a multiple of the divisor. A factor of a number is an exact divisor of that number. Factors are usually positive or negative whole numbers (No fractions). How to find factors of a number? (i) Factors by Multiplication: To find the factors using the multiplication, write the given number …

Simplification tricks and questions for All Competitive Exams

by Bina singhAugust 24, 2021December 18, 20210

Simplification questions are the most frequently asked questions in quantitative aptitude section for various Government exams. Candidates those who are preparing for various competitive exams must have to know the simple tricks to solve the simplification questions. What is simplification A combination of numbers connected by one or more of the symbols +, -, x,÷ and of is called a numerical expression . Thus (i) 15 +8÷ 4-6 (ii) 16-43+8÷ 2 are examples of numerical expression. Brackets are used to separate various parts of an expression. There are four kinds of brackets: (i) Bar or Vinculum …

How to find unit digit of a number raised to power

by Bina singhJuly 22, 2021January 5, 20220

How to find unit digit of a number raised to power To understand the concept unit digit, try to understand the concept of cyclicity and the approach to find the unit digit of a number when the number is of the form . Unit digit of = unit digit of Now consider the following cases : Case :1 When z= 0, 1, 6 or 5 , the unit digit of is=0,1, 5 or 6 respectively. Example : (i)Find unit digit of Sol. unit digit of = unit digit of = 5 ( any power of 5 gives unit …