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Revi M

This document is a revision worksheet for Grade 8 mathematics, containing various questions related to rational numbers, multiplicative inverses, absolute values, and simplifications. It includes problems on standard form, usual form, and basic algebraic equations. The worksheet aims to assess students' understanding of these mathematical concepts.

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mahibalanmuthukumaran7
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20 views2 pages

Revi M

This document is a revision worksheet for Grade 8 mathematics, containing various questions related to rational numbers, multiplicative inverses, absolute values, and simplifications. It includes problems on standard form, usual form, and basic algebraic equations. The worksheet aims to assess students' understanding of these mathematical concepts.

Uploaded by

mahibalanmuthukumaran7
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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REVISION WORKSHEET

GRADE 8
1. Which of the given rational number is in standard form?

𝟐𝟏 −𝟑 𝟓 𝟐
a) 𝒃) c) 𝒅)
𝟑𝟓 𝟔 𝟗 −𝟑

2. The multiplicative inverse of (𝟖)−𝟐 is


𝟏 –𝟏
a) b) 𝟔𝟒 c) -64 d)
𝟔𝟒 𝟔𝟒

−𝟑
3. The absolute value of is
𝟒
𝟑 −𝟑 𝟒 −𝟒
a) b) c) 𝟑 d)
𝟒 𝟒 𝟑

4. Find the value of 𝟓−𝟓 × 𝟓−𝟑


a) 𝟓𝟖 b) 𝟓𝟐 c)𝟓−𝟖 d)𝟓−𝟐

𝟐 𝟏
5. If a=𝟓 and b=𝟑 then find (𝒂 + 𝒃) ÷ (𝒂 − 𝒃)
𝟏 𝟏
a) b)12 c)11 d)𝟏𝟐
𝟏𝟏

6.
𝟏 𝟏
7. Simplify (𝟓 ÷ 𝟑) ÷ 𝟔

8. Write in standard form


a) 4587000000 b) 0.000023
9. Write the following numbers in usual form
a) 𝟒. 𝟐𝟓𝟔 × 𝟏𝟎𝟕 b) 0.00001275
𝟖𝟕𝟓 𝟐𝟓
10. A car travels km in hrs. Find the speed of the car in km/hr
𝟒 𝟒

11. Find x, (𝟑𝒙+𝟐 − 𝟗) ÷ 𝟖 = 𝟗

12.
CASE STUDY

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