Saturday 2 September 2017
Friday 1 September 2017
Thursday 31 August 2017
Wednesday 30 August 2017
Practice Sheet 2 on Exponents
PRACTICE SHEET 2
- Write in power notation:
(a)
(-7)×(-7)×(-7)×(-7)
(b)
(5/3)×(5/3) ×(5/3)
- 2. Express in power notation: (a)(-1/128) (b)27/64
- 3. Express as rational number: (a) (-4/5)3 (b) (-3/4)4 (c) (-6)-1
- 4. Find the reciprocal: (-4)3
- 5. Simplify:
(i)
(-4)0
(ii)
(40+70)
(iii)
(5/4)-4(5/4)2
(iv)
(2/3)3×(6/4)2
(v)
(5-1-7-1)-1
(vi)
((-2/3)2)3
(vii)
(-3/2)3÷(-3/2)6
- 6. By what number should (-4)-1 be multiplied so that the product is (-6)-1?
- 7. By what number should (-3)-1 be divided to get (-8)-1?
- 8. Find x: (3/5)3×(3/5)-6=(3/5)2x-1
- 9. (9n×32×3n-27n)/ ((33)5×23)=1/27, find the value of n
- 10. Simplify: (24×102×25)/(52×63)
Sunday 27 August 2017
Practice Sheet 1 on Integers and Decimals
PRACTICE SHEET 1
1.
Evaluate: (-7)+(-18)
2.
Subtract (-66) from 54.
3.
The sum of two integers is -23. If one of them
is 54, find the other.
4.
Multiply: (-12)×(-17)×(10)
5.
Simplify: (-17)×18+(-3)×18
6.
In a class test containing 10 questions, 5 marks
are awarded for every correct answer and (-3) marks are awarded for every
incorrect answer. Ravi gets 6 correct and 4 incorrect answers. What is his
score?
7.
Divide: (-105)÷21
8.
Find x: (a) x÷(-4)=24
(b)65÷x=(-5)
9.
Convert into a fraction in its simplest form:
(a) 0.04 (b) 2.85
10.
Convert into decimal:17/20
11.
Express 356 km in cm, m and dm.
12.
Arrange in ascending order: 7.5, 8.34, 4.06,
40.6,7.005
13.
Subtract: 78.909 from 83.
14.
By how much should 64.3 be decreased to get
43.67?
15.
Find the product: 4.5×3.5×0.03
16.
Divide: 3.28 by 0.8
17.
1 kg of milk has 0.256 kg of fat. How much fat
is there in 13.5 kg of milk?
18.
A bus can cover 57.5 km in one hour. How much
distance can it cover in 14 hours?
19.
The product of two decimals is 1.5008. If one of
them is 0.56, find the other.
20.
How many pieces of plywood, each 0.35 cm thick,
are required to make a pile 1.89 m high?
Monday 21 August 2017
Friday 4 August 2017
Thursday 27 July 2017
Saturday 22 July 2017
Wednesday 19 July 2017
Sunday 28 May 2017
Tuesday 23 May 2017
Tuesday 16 May 2017
Wednesday 10 May 2017
Friday 5 May 2017
Tuesday 25 April 2017
Tuesday 18 April 2017
Wednesday 12 April 2017
Tuesday 11 April 2017
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