ANAND NIKETAN INTERNATIONAL
SARKHEJ CAMPUS
WORKSHEET
NAME : ______________________________________________
Mathematics
Grade 8
1.
2.
3. Solve the following and find the value of x.
a) 16 × 4𝑥 = 2𝑥+1
b) 6𝑥+1 = 36𝑥
c) 41.5𝑥 = 2 × 16𝑥−1
4.
Work out the value of :
5.
6.
Work out the value of P3×Q. Give your answer in the form 3x× 5y× 7z where x, y and
z are positive integers.
7.
8. Simplify :
9. Find two distinct irrational number x and y, so that xy = 10.
10. Write all irrational number from the following :
√16 , √18 , √2 + 3, √0.9 , √0.04
Answers :
1.
1
2𝑥𝑦 −2
2. 24 𝑥 3
3. a) x = −
3
2
b) x = 1
c) x = 3
4. 22
5. 3.83 x 1010
6. x =11 , y= 7 and z=5
7.
1
2 ×103𝑛
8. 2 𝑎3 𝑐 −2 𝑏