INDIAN SCHOOL MUSCAT – MIDDLE SECTION – DEPARTMENT OF MATHEMATICS – TERM :02 ( 2018 – 19 ) NAME OF THE STUDENT :
CLASS : 8 SEC :
TOPIC: EXPONENETS AND POWERS
WORKSHEET NO: 02
S.NO 1
SUB: MATHEMATICS DATE : 27. 11. 2018
ANSWER THE FOLLOWING 2 3
2
Simplify: ( 4- 1 ̶ 8- 1) ÷
2 2 1 b) 3
8 1 16 1 4 1 13 5 5
2
Find the value of
a)
3
Multiplicative inverse of 15- 4 is ______________
4
The value of 50 × 3- 1 is ___________________
3
Simplify and write the answer in exponential form with positive exponent. 5
a) (- 4 )3 × (- 4 ) – 8 4
9
2 2 2 c) 3 3 3
6
Simplify:
7
Find ‘x’ if
12
d)
Find ‘m’ if
2
2 3
4 3 a 5 b 4 4 5 a 8 b 3
a)
b)
a) 4 5x – 3 = 16 3x – 5 5
8
26 ÷ 2 9
b)
a)
10 5 9 4 2 4 15 3
b) 2 2x + 3 = 1
4 2 2 25 5 5 m
b) (25)- 4 = 5 m
Write in standard form: 9 a) 836 000 000 10
b) 0.000 000 045
Write in usual form a) 6.34 × 10- 5
c) 0. 00 000 306 b) 8.9 × 104
d)
6102 10000
c) 6 × 10- 8 d) 2.3456 × 103
