MATHEMATICS
REVISION FOR
7th GRADE/STD STUDENTS
7th GRADE/STD STUDENTS
1. If 288 = 2m x 3n,
find the value of m and n
2. Simplify: 2x(x2 – 4x + 1)
3. Solve: 5(x – 1) = 2(5 + x)
4. Write 235000 in scientific notation
5. Write 4.51 x 10 - 4 in standard form
6. Simplify: ( x + 7 )( x – 5 )
7. Evaluate : 0.009 + (0.2)3 x 25
8. Write 7/8 as a decimal
9.
Simplify : (1/2 + 1/3)/(1/2 – 1/3)
10. Solve : (2x - 5)/4
= (x + 1) /3
11 simplify : ( x + 1
)( 2x2 – 5x – 3 )
12. If P(x) = x7 - 3x4 + x2
– 1, find the value of P(1) + P(-1)
13. If
2x = 1/128 , find
the value of x
14. Find the value of 34 . 6-2 . 120
15.
Ritu’s birth day party will cost
$ 78 if she invites 12 guests. How much it may cost if she invites 13 guests
for the party ?
16. Write the ratio, 1 ¼ hour to
50 minutes in its simplest form
17. Simplify : ( 2xy + 1 )2
18. The distance between two towns on a map is 30 cm.
The actual distance between these towns is 6 km. Find , as a ratio , the scale used to draw
the map.
19.Georginah’s wage was $240 per week. After a pay rise, her wage is increased to $ 283.20 . What is the percent of increase in Georginah’s
salary ?
20.
In a sale, normal prices
at a particular shop are reduced by 12 %. The normal price of a camera at this
shop is $ 102.00. Work out the sale price of this camera.
Students interested in obtaining online explanations
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