(256 - 196 + 169 - 144) ÷ ? = 505

⇒ (425 - 340) ÷ ? = 505

⇒ 85 ÷ ? = 505

⇒ ? = 85/505 = 0.16

1280% of 75 ÷ 30 + ? = 80

⇒ 960 ÷ 30 + ? = 80

⇒ 32 + ? = 80

⇒ ? = 80 - 32 = 48

4532 ÷ √1936 + 524 ÷ 4 = ?

⇒ 4532 ÷ 44 + 131 = ?

⇒ 103 + 131 = ?

⇒ 234 = ?

√676 × 34 + 125 × 7 = ? - 41

⇒ 26 × 34 + 125 × 7 = ? - 41

⇒ 884 + 875 = ? - 41

⇒ 1759 = ? - 41

⇒ ? = 1759 + 41 = 1800

Follow BODMAS rule to solve this question, as per the order given below,

Step-1- Parts of an equation enclosed in 'Brackets' must be solved first, and in the bracket,

Step-2- Any mathematical 'Of' or 'Exponent' must be solved next,

Step-3- Next, the parts of the equation that contain 'Division' and 'Multiplication' are calculated,

Step-4- Last but not least, the parts of the equation that contain 'Addition' and 'Subtraction' should be calculated.

Given expression is

⇒ \(\left( {\sqrt 2 + \sqrt {7 - 2\sqrt {10} } } \right)\)

= \(\sqrt2 + \sqrt{(\sqrt5)^2+(\sqrt2)^2-2\times\sqrt5\times\sqrt2}\)

= √2 + √(√5 – √2)²

= √2 + √5 – √2

= √5

826.88 + 320.93 + 2334.03 – 333.013 – 324.012 = 113 × √(?)

Approximating the value to the nearest integer:

⇒ 827 + 321 + 2334 – 333 – 324 = 113 × √(?)

⇒ 3482 – 657 = 113 × √(?)

⇒ 2825 = 113 × √(?)

⇒ (?) = 25²

√[3992.87 ÷ 1330.95 × √120.98] = (?)²

Approximating the values to the nearest integer:

⇒ √[3993 ÷ 1331 × √121] = (?)²

⇒ (?)² = √[3 × √121]

⇒ (?)² = √3 × 11

Follow BODMAS rule to solve this question, as per the order given below,

Step-1- Parts of an equation enclosed in 'Brackets' must be solved first, and in the bracket,

Step-2- Any mathematical 'Of' or 'Exponent' must be solved next,

Step-3- Next, the parts of the equation that contain 'Division' and 'Multiplication' are calculated,

Step-4- Last but not the least, the parts of the equation that contain 'Addition' and 'Subtraction' should be calculated.

Given Expression,

37.80 ÷ 19.091 × 6.87 + 586.16 = 1189.90 - ?

We can also write values as:

37.80 ≈ 38, 19.091 ≈ 19, 6.87 ≈ 7, 586.16 ≈ 586, 1189.90 ≈ 1190

Given expression becomes,

⇒ 38 ÷ 19 × 7 + 586 = 1190 - ?

⇒ 2 × 7 + 586 = 1190 - ?

⇒ 14 + 586 = 1190 - ?

⇒ 600 = 1190 - ?

Follow BODMAS rule to solve this question, as per the order given below,

Step-1- Parts of an equation enclosed in 'Brackets' must be solved first, and in the bracket,

Step-2- Any mathematical 'Of' or 'Exponent' must be solved next,

Step-3- Next, the parts of the equation that contain 'Division' and 'Multiplication' are calculated,

Step-4- Last but not the least, the parts of the equation that contain 'Addition' and 'Subtraction' should be calculated.

Given Expression,

(57.71 ÷ 3.89) × 2.22 + 51.17 = 157.69 - ?

We can also write values as:

57.71 ≈ 58, 3.89 ≈ 4, 2.22 ≈ 2, 51.17 ≈ 51, 157.69 ≈ 158

Given expression becomes,

⇒ (58 ÷ 4) × 2 + 51 = 158 - ?

⇒ 14.5 × 2 + 51 = 158 - ?

⇒ 29 + 51 = 158 - ?

⇒ 80 = 158 - ?

⇒ ? = 158 – 80

Follow BODMAS rule to solve this question, as per the order given below,

Step-1- Parts of an equation enclosed in 'Brackets' must be solved first, and in the bracket,

Step-2- Any mathematical 'Of' or 'Exponent' must be solved next,

Step-3- Next, the parts of the equation that contain 'Division' and 'Multiplication' are calculated,

Step-4- Last but not the least, the parts of the equation that contain 'Addition' and 'Subtraction' should be calculated.

Given Expression,

(187.73 ÷ 46.60 × 25.32) ÷ 20.20 = 95.35 ÷ ?

We can also write values as:

187.73 ≈ 188, 46.60 ≈ 47, 25.32 ≈ 25, 20.20 ≈ 20, 95.35 ≈ 95

Given expression becomes,

⇒ (188 ÷ 47 × 25) ÷ 20 = 95 ÷ ?

⇒ (4 × 25) ÷ 20 = 95 ÷ ?

⇒ 100 ÷ 20 = 95 ÷ ?

⇒ 5 = 95 ÷ ?

Follow BODMAS rule to solve this question, as per the order given below,

Step-1- Parts of an equation enclosed in 'Brackets' must be solved first, and in the bracket,

Step-2- Any mathematical 'Of' or 'Exponent' must be solved next,

Step-3- Next, the parts of the equation that contain 'Division' and 'Multiplication' are calculated,

Step-4- Last but not the least, the parts of the equation that contain 'Addition' and 'Subtraction' should be calculated.

Given Expression,

(67.68 × 14.89 ÷ 3.19) ÷ 68.14 = 84.89 ÷ ?

We can also write values as:

67.88 ≈ 68, 14.89 ≈ 15, 3.19 ≈ 3, 68.14 ≈ 68, 84.89 ≈ 85

Given expression becomes,

⇒ (68 × 15 ÷ 3) ÷ 68 = 85 ÷ ?

⇒ (68 × 5) ÷ 68 = 85 ÷ ?

⇒ 340 ÷ 68 = 85 ÷ ?

⇒ 5 = 85 ÷ ?

Follow BODMAS rule to solve this question, as per the order given below,

Step-1- Parts of an equation enclosed in 'Brackets' must be solved first, and in the bracket,

Step-2- Any mathematical 'Of' or 'Exponent' must be solved next,

Step-3- Next, the parts of the equation that contain 'Division' and 'Multiplication' are calculated,

Step-4- Last but not the least, the parts of the equation that contain 'Addition' and 'Subtraction' should be calculated.

Given Expression,

75.4 × 5.19 + 515.30 = 314.90 × ? – 54.73

We can also write values as:

75.4 ≈ 75, 5.19 ≈ 5, 515.30 ≈ 515, 314.90 ≈ 315, 54.73 ≈ 55

Given expression becomes,

⇒ 75 × 5 + 515 = 315 × ? – 55

⇒ 375 + 515 = 315 × ? - 55

⇒ 890 = 315 × ? - 55

⇒ 315 × ? = 945

According to the BODMAS rule, the priority in which the operations should be done is:

⇒ 75.01% of 540.02 + 200/3% of 3869.98 = (?)

Approximating the value to the nearest integer:

⇒ 75% of 540 + 200/3% of 3870 = ?

⇒ 405 + 200/3% of 3870 = ? 

(?) = 405 + 2580 

(?) = 2985

Follow BODMAS rule to solve this question, as per the order given below,

Step–1: Parts of an equation enclosed in 'Brackets' must be solved first, and in the bracket,

Step–2: Any mathematical 'Of' or 'Exponent' must be solved next,

Step–3: Next, the parts of the equation that contain 'Division' and 'Multiplication' are calculated,

Step–4: Last but not least, the parts of the equation that contain 'Addition' and 'Subtraction' should be calculated.

1124 + [24 + {23 – (27 + 6 × 9) + 91} + 66.67% of 75] = ?² + 270

⇒ 1124 + [24 + {23 – (27 + 54) + 91} + 2/3 × 75] = ?² + 270

⇒ 1124 + [24 + {23 – 81 + 91} + 2 × 25] = ?² + 270

⇒ 1124 + [24 + 33 + 50] = ?² + 270

⇒ 1124 + 107 = ?² + 270

⇒ ?² = 1231 – 270 = 961

Follow BODMAS rule to solve this question, as per the order given below,

Step–1: Parts of an equation enclosed in 'Brackets' must be solved first, and in the bracket,

Step–2: Any mathematical 'Of' or 'Exponent' must be solved next,

Step–3: Next, the parts of the equation that contain 'Division' and 'Multiplication' are calculated,

Step–4: Last but not least, the parts of the equation that contain 'Addition' and 'Subtraction' should be calculated.

1347 + 254 + 457 – 3382 + 8745 – 5723 = ?

⇒ ? = 2058 + 5363 – 5723

⇒ ? = 7421 – 5723

∴ ? = 1698