BODMAS Rules - Involving Integers

We will obey the rules for simplifying an expression using BODMAS rules - involving integers for solving order of operations.


Follow the order of operation as:

1. Bracket β†’ Solve inside the Brackets before Of, Multiply, Divide, Add or Subtract.

For example:

7 Γ— (15 + 5)

= 7 Γ— 20

= 140

2. Of β†’ Then, solve Of part (Powers, Roots, etc.,) before Multiply, Divide, Add or Subtract.

For example:

6 + 3 of 7 - 5

= 6 + 3 Γ— 7 - 5

= 6 + 21 - 5

= 27 - 5

= 22


3. Division/Multiplication β†’ Then, calculate Multiply or Divide before Add or Subtract start from left to right.

For example:

20 + 21 Γ· 3 Γ— 2

= 20 + 7 Γ— 2

= 20 + 14

= 34


4. Addition/Subtraction β†’ At last Add or Subtract start from left to right.

17 + (8 - 5) Γ— 5

= 17 + 3 Γ— 5

= 17 + 15

= 32


Worked-out problems for solving BODMAS rules - involving integers:

Simplify using BODMAS rule:

(a) 25 - 48 Γ· 6 + 12 Γ— 2

Solution:

25 - 48 Γ· 6 + 12 Γ— 2

= 25 - 8 + 12 Γ— 2, (Simplifying β€˜division’ 48 Γ· 6 = 8)

= 25 - 8 + 24, (Simplifying β€˜multiplication’ 12 Γ— 2 = 24)

= 17 + 24, (Simplifying β€˜subtraction’ 25 - 8 = 17)

= 41, (Simplifying β€˜addition’ 17 + 24 = 41)

Answer: 41


(b) 78 - [5 + 3 of (25 - 2 Γ— 10)]

Solution:

78 - [5 + 3 of (25 - 2 Γ— 10)]

= 78 - [5 + 3 of (25 - 20)], (Simplifying β€˜multiplication’ 2 Γ— 10 = 20)

= 78 - [5 + 3 of 5], (Simplifying β€˜subtraction’ 25 - 20 = 5)

= 78 - [5 + 3 Γ— 5], (Simplifying β€˜of’)

= 78 - [5 + 15], (Simplifying β€˜multiplication’ 3 Γ— 5 = 15)

= 78 - 20, (Simplifying β€˜addition’ 5 + 15 = 20)

= 58, (Simplifying β€˜subtraction’ 78 - 20 = 58)

Answer: 58


(c) 52 - 4 of (17 - 12) + 4 Γ— 7

Solution:

52 - 4 of (17 - 12) + 4 Γ— 7

= 52 - 4 of 5 + 4 Γ— 7, (Simplifying β€˜parenthesis’ 17 - 12 = 5)

= 52 - 4 Γ— 5 + 4 Γ— 7, (Simplifying β€˜of’)

= 52 - 20 + 4 Γ— 7, (Simplifying β€˜multiplication’ 4 Γ— 5 = 20)

= 52 - 20 + 28, (Simplifying β€˜multiplication’ 4 Γ— 7 = 28)

= 32 + 28, (Simplifying β€˜subtraction’ 52 - 20 = 32)

= 60, (Simplifying β€˜addition’ 32 + 28 = 60)

Answer: 60

● Related Concept

● Decimals

● Decimal Numbers

● Decimal Fractions

● Like and Unlike Decimals

● Comparing Decimals

● Decimal Places

● Conversion of Unlike Decimals to Like Decimals

● Decimal and Fractional Expansion

● Terminating Decimal

● Non-Terminating Decimal

● Converting Decimals to Fractions

● Converting Fractions to Decimals

● H.C.F. and L.C.M. of Decimals

● Repeating or Recurring Decimal

● Pure Recurring Decimal

● Mixed Recurring Decimal

● BODMAS Rule

● BODMAS/PEMDAS Rules - Involving Decimals

● PEMDAS Rules - Involving Integers

● PEMDAS Rules - Involving Decimals

● PEMDAS Rule

● BODMAS Rules - Involving Integers

● Conversion of Pure Recurring Decimal into Vulgar Fraction

● Conversion of Mixed Recurring Decimals into Vulgar Fractions

● Simplification of Decimal

● Rounding Decimals

● Rounding Decimals to the Nearest Whole Number

● Rounding Decimals to the Nearest Tenths

● Rounding Decimals to the Nearest Hundredths

● Round a Decimal

● Adding Decimals

● Subtracting Decimals

● Simplify Decimals Involving Addition and Subtraction Decimals

● Multiplying Decimal by a Decimal Number

● Multiplying Decimal by a Whole Number

● Dividing Decimal by a Whole Number

● Dividing Decimal by a Decimal Number


7th Grade Math Problems

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