Mathematics Questions and Answers – Use of Exponents to Express Small Numbers in Standard Form

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This set of Mathematics Multiple Choice Questions & Answers (MCQs) focuses on “Use of Exponents to Express Small Numbers in Standard Form”.

1. Express the following in the standard form: 0.000000021.
a) 2.1 × 10-7
b) 2.1 × 10-9
c) 2.1 × 10-10
d) 2.1 × 10-8
View Answer

Answer: d
Explanation: 0.000000021 = 2.1 × 10-8.

2. What is the standard form of 80460000?
a) 8.046 × 107
b) 8.046 × 106
c) 8.046 × 109
d) 8.046 × 108
View Answer

Answer: a
Explanation: 80460000 = 8.046 × 107.

3. Find the usual form of 2.33 × 103.
a) 0.002033
b) 0.0000233
c) 0.00233
d) 0.000233
View Answer

Answer: c
Explanation: 2.33 × 10-3 = 0.00233.

4. What is the Usual form of 16.8 × 105?
a) 16800000
b) 1680000
c) 168000
d) 16800
View Answer

Answer: b
Explanation: 16.8 × 105 = 1680000.

Sanfoundry Global Education & Learning Series – Mathematics – Class 8.

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To practice Mathematics Online Quiz for Class 8, here is complete set of 1000+ Multiple Choice Questions and Answers.

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Manish Bhojasia - Founder & CTO at Sanfoundry
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He is Linux Kernel Developer & SAN Architect and is passionate about competency developments in these areas. He lives in Bangalore and delivers focused training sessions to IT professionals in Linux Kernel, Linux Debugging, Linux Device Drivers, Linux Networking, Linux Storage, Advanced C Programming, SAN Storage Technologies, SCSI Internals & Storage Protocols such as iSCSI & Fiber Channel. Stay connected with him @ LinkedIn | Youtube | Instagram | Facebook | Twitter