Class 7 - Exponents Worksheet 3
1. Find the value of 54?
a) 25 b) 125
c) 50 d) 625
2. If (-3⁄5)5 is the expression, then what is the base and exponent?
a) Base = 5⁄3 and Exponent = 5
b) Base = -3⁄5 and Exponent = 8
c) Base = -3⁄5 and Exponent = 5
d) None of these
3. (3⁄5)3 = _____
a) (27⁄25) b) (27⁄125)
c) (27⁄50) d) None of these
4. 128 = _____.
a) 23 b) 24
c) 26 d) 27
5. (62)3 = (26 × 35), mark True / False.
a) True b) False
6. (20 + 30)2 × (50 + 70)3 = _____.
a) 8 b) 16
c) 32 d) 100
7. (40 + 50)2 ÷ (70 + 80)3 = _____.
a) 1 b) −1
c) 2-1 d) None of these
8. (p3 × p5) ÷ (p2)3 = _____.
a) p2 b) p3
c) p4 d) None of these
9. (52)5 × (54)6 = _____.
a) 524 b) 534
c) 514 d) None of these
10. (3 × 52 × 97) ÷ (15 × 93) = _____.
a) 5293 b) 5394
c) 5393 d) 5194
11. (1⁄25)18 ÷ (1⁄25)23 = _____.
a) (1⁄25)7 b) (1⁄25)6
c) (1⁄25)5 d) 510
12. (105 × 154) ÷ (22 × 3 × 54 × 63) = _____.
a) 25 b) 55
c) 53 d) 5-3
13. Any number to the power is zero is equal to _____.
a) 0 b) -1
c) 1 d) None of these
14. The reciprocal of 54 is zero is equal to _____.
a) 5-4 b) 54
c) 1 d) None of these
15. 175 km = _____ meter.
a) 1.75 × 103 b) 1.75 × 104
c) 1.75 × 105 d) None of these
16. 25 litre = _____ ml.
a) 0.25 × 105 b) 2.5 × 104
c) 25 × 105 d) Both A & B
17. 225 km = _____ cm.
a) 225 × 107 b) 22.5 × 107
c) 2.25 × 107 d) None of these
18. (36 × 104 × 52) ÷ (33 × 24 × 55) = _____.
a) 135 b) 153
c) 513 d) None of these
19. 7 × 105 + 6 × 103 + 2 × 102 + 5 × 100 = _____.
a) 706025 b) 76205
c) 706205 d) None of these
20. 5006285 = _____.
a) 5 × 105 + 6 × 103 + 2 × 102 + 8 × 101 +5 × 100
b) 5 × 106 + 6 × 103 + 2 × 102 + 8 × 101 +5 × 100
c) 5 × 107 + 6 × 103 + 2 × 102 + 8 × 101 +5 × 100
d) 5 × 106 + 6 × 104 + 2 × 102 + 8 × 101 +5 × 100
If you want to download the above worksheet, please click below link.
Exponents Worksheet-3Download the pdf
Answer Sheet
Exponents-AnswerDownload the pdf
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