GRADE 7 MATHS REVISION WITH MEMO (15 PAGES WORKSHEETS + 15 PAGES ... - Free Printable

Problem Breakdown and Solution

The image contains three sections:
1. Calculate the value of the Exponents
2. Calculate the root of each value
3. Classify and measure the angles

Let's solve each section step by step.

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Section 1: Calculate the value of the Exponents

#### 49. \( 94^5 \)
\[ 94^5 = 94 \times 94 \times 94 \times 94 \times 94 \]
This is a very large number, but for completeness:
\[ 94^5 = 7339040224 \]

#### 50. \( 2^3 \)
\[ 2^3 = 2 \times 2 \times 2 = 8 \]

#### 51. \( 15^6 \)
\[ 15^6 = 15 \times 15 \times 15 \times 15 \times 15 \times 15 \]
\[ 15^6 = 11390625 \]

#### 52. \( 2^6 \)
\[ 2^6 = 2 \times 2 \times 2 \times 2 \times 2 \times 2 = 64 \]

#### 53. \( 17^4 \)
\[ 17^4 = 17 \times 17 \times 17 \times 17 \]
\[ 17^2 = 289 \]
\[ 17^4 = 289 \times 289 = 83521 \]

#### 54. \( 2^4 \)
\[ 2^4 = 2 \times 2 \times 2 \times 2 = 16 \]

#### 55. \( 7^2 \)
\[ 7^2 = 7 \times 7 = 49 \]

#### 56. \( 7^3 \)
\[ 7^3 = 7 \times 7 \times 7 = 343 \]

#### 57. \( 7^5 \)
\[ 7^5 = 7 \times 7 \times 7 \times 7 \times 7 \]
\[ 7^2 = 49 \]
\[ 7^4 = 49 \times 49 = 2401 \]
\[ 7^5 = 2401 \times 7 = 16807 \]

#### 58. \( 31^3 \)
\[ 31^3 = 31 \times 31 \times 31 \]
\[ 31^2 = 961 \]
\[ 31^3 = 961 \times 31 = 29791 \]

#### 59. \( 6^3 \)
\[ 6^3 = 6 \times 6 \times 6 = 216 \]

#### 60. \( 74^3 \)
\[ 74^3 = 74 \times 74 \times 74 \]
\[ 74^2 = 5476 \]
\[ 74^3 = 5476 \times 74 = 405224 \]

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Section 2: Calculate the root of each value

#### 61. \( \sqrt{64} \)
\[ \sqrt{64} = 8 \]

#### 62. \( \sqrt{9} \)
\[ \sqrt{9} = 3 \]

#### 63. \( \sqrt{529} \)
\[ \sqrt{529} = 23 \]

#### 64. \( \sqrt{1} \)
\[ \sqrt{1} = 1 \]

#### 65. \( \sqrt{49} \)
\[ \sqrt{49} = 7 \]

#### 66. \( \sqrt{4} \)
\[ \sqrt{4} = 2 \]

#### 67. \( \sqrt{324} \)
\[ \sqrt{324} = 18 \]

#### 68. \( \sqrt{1024} \)
\[ \sqrt{1024} = 32 \]

#### 69. \( \sqrt{36} \)
\[ \sqrt{36} = 6 \]

#### 70. \( \sqrt{196} \)
\[ \sqrt{196} = 14 \]

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Section 3: Classify and measure the angles

#### 71.
- The angle is a right angle.
- Measurement: \( 90^\circ \)

#### 72.
- The angle is an acute angle.
- Measurement: Less than \( 90^\circ \) (specific measurement not provided, but it appears to be around \( 60^\circ \) or \( 45^\circ \)).

#### 73.
- The angle is a reflex angle.
- Measurement: Greater than \( 180^\circ \) but less than \( 360^\circ \) (specific measurement not provided, but it appears to be around \( 270^\circ \)).

#### 74.
- The angle is an acute angle.
- Measurement: Less than \( 90^\circ \) (specific measurement not provided, but it appears to be around \( 30^\circ \)).

#### 75.
- The angle is an obtuse angle.
- Measurement: Greater than \( 90^\circ \) but less than \( 180^\circ \) (specific measurement not provided, but it appears to be around \( 120^\circ \)).

#### 76.
- The angle is an acute angle.
- Measurement: Less than \( 90^\circ \) (specific measurement not provided, but it appears to be around \( 60^\circ \)).

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Final Answers

#### Section 1: Exponents
1. \( 94^5 = 7339040224 \)
2. \( 2^3 = 8 \)
3. \( 15^6 = 11390625 \)
4. \( 2^6 = 64 \)
5. \( 17^4 = 83521 \)
6. \( 2^4 = 16 \)
7. \( 7^2 = 49 \)
8. \( 7^3 = 343 \)
9. \( 7^5 = 16807 \)
10. \( 31^3 = 29791 \)
11. \( 6^3 = 216 \)
12. \( 74^3 = 405224 \)

#### Section 2: Roots
1. \( \sqrt{64} = 8 \)
2. \( \sqrt{9} = 3 \)
3. \( \sqrt{529} = 23 \)
4. \( \sqrt{1} = 1 \)
5. \( \sqrt{49} = 7 \)
6. \( \sqrt{4} = 2 \)
7. \( \sqrt{324} = 18 \)
8. \( \sqrt{1024} = 32 \)
9. \( \sqrt{36} = 6 \)
10. \( \sqrt{196} = 14 \)

#### Section 3: Angles
1. Right angle (\( 90^\circ \))
2. Acute angle (< \( 90^\circ \))
3. Reflex angle (> \( 180^\circ \))
4. Acute angle (< \( 90^\circ \))
5. Obtuse angle (> \( 90^\circ \))
6. Acute angle (< \( 90^\circ \))

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Boxed Final Answer

\[
\boxed{
\begin{array}{l}
\text{Exponents: } 7339040224, 8, 11390625, 64, 83521, 16, 49, 343, 16807, 29791, 216, 405224 \\
\text{Roots: } 8, 3, 23, 1, 7, 2, 18, 32, 6, 14 \\
\text{Angles: } \text{Right, Acute, Reflex, Acute, Obtuse, Acute}
\end{array}
}
\]