Math Operation and Symbol Notation is an important concept of reasoning that is generally asked in different competitive exams. This topic is asked to test the problem-solving abilities of the candidates. It demonstrates your skill in observing details and utilizing them to solve problems. In order to achieve a perfect score in this subject, it is mandatory to practice maximum number of questions and become familiar with the basic concept. Here we are providing you with the method to solve Math Operation and Symbol Notation along with Solutions.

**Determining the correctness of given equations****Using symbols equivalent to signs****Interchanging signs****Balancing equations****Solving equations**

**BODMAS** is very important for such mathematical operation questions and you must know this rule very clearly i.e. Brackets, Orders, Division, Multiplication, Addition, and Subtraction.**The correct sequence to solve mathematical expressions is:**

**Expand the brackets****Simplify powers or roots****Perform division, followed by multiplication****Carry out addition and subtraction operations.**

Freeonlinetest is the best Online platform for varios types of competitive exams like UPSC, SSC, Banking, Railways and other State PSCs. Here we are providing the best MCQs, Online tests, Mock Tests of Math Operation and Symbol Notation from easy to hihg level Question Papers which helps candidates to practice more questions on Series.

**Question-1)**

**If C means ‘add to’, K means ‘multiply by’, W means ‘subtract from’ and U means ‘divide by’, then 26 U 2 C 3 K 6 W 4 = ?**

(a) 10

(b) 28

(c) 30

(d) 27

**Solution:**

Using the correct symbols, we have:

Given expression = 26 ÷ 2 + 3 × 6 – 4 = 13 + 18 – 4 = 27

**Question-2)**

**Using the following substitutions: + for ×, × for -, ÷ for +, and – for ÷, what is the value of the expression 625 – 25 ÷ 5 + 20 × 3 + 10?**

(a) 77

(b) 95

(c) 88

(d) 137

**Solution:**

Using the proper signs in the given expression, we get:

625 ÷ 25 + 5 × 20 – 3 × 10

= 25 + 5 × 20 – 3 × 10 = 25 + 100 – 30

= 125 – 30 = 95

**Question-3)**

**Which of the following interchange of numbers would make the given equation correct?**

8 × 20 ÷ 3 + 9 - 5 = 38

(a) 38

(b) 27

(c) 18

(d) 53

**Solution**:

∵ 8 × 20 ÷ 3 + 9 - 5 = 38

⇒ 8 × 20 ÷ 5 + 9 - 3 = 38

⇒ 8 × 4 = 9 - 3 = 38

⇒ 32 + 9 - 3 = 38

**Question-4)**

In each of the following questions, all the equations except one have been solved according to a certain rule. You are required to solve the unsolved equation following the same rule and to choose the correct answer out of the given options.

**9 * 7 = 32, 13 * 7 = 120, 17 * 9 = 208, 19 * 11 = x**

(a) 38

(b) 27

(c) 18

(d) 53

**Solution:**

As, 9 * 7 ⇒ (9 + 7) (9 - 7) = 16 × 2 = 32

13 * 7 ⇒ (13 + 7) (13 - 7) = 20 × 6 = 120

17 * 9 ⇒ (17 + 9) (17 - 9) = 26 × 8 = 208

Similarly, 19 * 11 ⇒ (19 + 11) (19 - 11) = 30 × 8 = 240

∴ x = 240

Online Test - 1 (Math operation and symbol notation) TAKE TEST
Number of questions : 20 | Time : 30 minutes |

Online Test - 2 (Math operation and symbol notation) TAKE TEST
Number of questions : 20 | Time : 30 minutes |

Online Test - 3 (Math operation and symbol notation) TAKE TEST
Number of questions : 20 | Time : 30 minutes |

Online Test - 4 (Math operation and symbol notation) TAKE TEST
Number of questions : 20 | Time : 30 minutes |