Exonents and power
Authored by Manish Bhardwaj
Mathematics
6th - 8th Grade
CCSS covered
Used 13+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The value of 2-2 is:
4
¼
2
½
Answer explanation
Explanation: 2-2 = 1/22 = ¼
Tags
CCSS.7.NS.A.1C
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The multiplicative inverse of 7-2 is:
72
7
1/72
1/7
Answer explanation
Explanation: The multiplicative inverse of any value is the one which when multiplied by the original value gives a value equal to 1.
7-2 = 1/72
Hence, 72 x 1/72 = 1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
22 x 23 x 24 is equal to:
224
2-5
29
2-9
Answer explanation
Explanation: By laws of exponents:
am x an = am+n
22 x 23 x 24 = 22+3+4 = 29
Tags
CCSS.5.NBT.B.5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3-2 x 3-5 is equal to:
3-7
3-3
3-10
37
Answer explanation
Explanation: 3-2 x 3-5 = (1/32) x (1/35)
= (1/32+5)
= (1/37)
= 3-7
Tags
CCSS.7.NS.A.1D
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
54/52 is equal to:
56
5-6
5-2
52
Answer explanation
Explanation: By exponent law:
am/an = am-n
54/52 = 54-2 = 52
Tags
CCSS.3.NF.A.3A
CCSS.3.NF.A.3B
CCSS.4.NF.A.1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The value of (34)3 is:
3
312
37
None of the above
Answer explanation
Explanation: By law of exponent:
(am)n = amn
(34)3 = 34×3 = 312
Tags
CCSS.6.EE.A.1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
32 x 42 is equal to:
121
49
144
156
Answer explanation
Explanation: By exponent law;
am x bm = (ab)m
32 x 42 = (3×4)2 = 122 = 144
Tags
CCSS.4.NBT.B.5
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