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Scientific Notation and Significant Figures Online MCQs with Answers
What is 2.5 x 10^4 in standard notation?
a) 250
b) 2500
c) 25,000
d) 250,000
Which of the following numbers has the greatest number of significant figures?
a) 0.003
b) 0.0030
c) 0.00300
d) 0.003000
Express 9,500,000 in scientific notation.
a) 9.5 x 10^5
b) 9.5 x 10^6
c) 9.5 x 10^7
d) 9.5 x 10^8
How many significant figures are in the number 0.0508?
a) 2
b) 3
c) 4
d) 5
Convert 0.00675 to scientific notation.
a) 6.75 x 10^-3
b) 6.75 x 10^-4
c) 6.75 x 10^-5
d) 6.75 x 10^-6
What is the result of (5.4 x 10^3) + (3.2 x 10^2)?
a) 8.6 x 10^3
b) 5.4 x 10^5
c) 3.2 x 10^2
d) 5.4 x 10^3 + 3.2 x 10^2
How many significant figures are in the number 240,000?
a) 2
b) 3
c) 4
d) 5
Express 0.0000645 in scientific notation.
a) 6.45 x 10^-6
b) 6.45 x 10^-5
c) 6.45 x 10^-4
d) 6.45 x 10^-3
What is the result of (4.5 x 10^3) x (2.0 x 10^4)?
a) 9.0 x 10^7
b) 9.0 x 10^12
c) 9.0 x 10^16
d) 9.0 x 10^24
How many significant figures are in the number 50.0?
a) 2
b) 3
c) 4
d) 5
Convert 8.95 x 10^-7 to standard notation.
a) 0.00000895
b) 0.000000895
c) 0.0000000895
d) 0.00000000895
Express 6,200,000,000 in scientific notation.
a) 6.2 x 10^6
b) 6.2 x 10^7
c) 6.2 x 10^8
d) 6.2 x 10^9
What is the result of (2.4 x 10^5) – (1.5 x 10^4)?
a) 1.5 x 10^1
b) 2.4 x 10^5 – 1.5 x 10^4
c) 2.25 x 10^5
d) 2.4 x 10^5 + 1.5 x 10^4
How many significant figures are in the number 1.000?
a) 1
b) 2
c) 3
d) 4
Convert 4.2 x 10^-2 to standard notation.
a) 0.042
b) 0.0042
c) 0.00042
d) 0.000042
What is 3.0 x 10^2 divided by 6.0 x 10^1?
a) 0.5 x 10^1
b) 0.5
c) 5.0
d) 5.0 x 10^0
How many significant figures are in the number 3000?
a) 1
b) 2
c) 3
d) 4
Express 0.0000723 in scientific notation.
a) 7.23 x 10^-6
b) 7.23 x 10^-5
c) 7.23 x 10^-4
d) 7.23 x 10^-3
What is the result of (6.8 x 10^3) x (9.0 x 10^4)?
a) 6.8 x 10^7
b) 6.8 x 10^12
c) 6.8 x 10^16
d) 6.8 x 10^24
How many significant figures are in the number 0.02050?
a) 2
b) 3
c) 4
d) 5
Convert 5.6 x 10^-8 to standard notation.
a) 0.000000056
b) 0.0000000056
c) 0.00000000056
d) 0.000000000056
Express 7,500,000,000 in scientific notation.
a) 7.5 x 10^6
b) 7.5 x 10^7
c) 7.5 x 10^8
d) 7.5 x 10^9
What is the result of (1.8 x 10^6) – (6.7 x 10^5)?
a) 1.1 x 10^1
b) 1.8 x 10^6 – 6.7 x 10^5
c) 1.1 x 10^6
d) 1.8 x 10^6 + 6.7 x 10^5
How many significant figures are in the number 1000.0?
a) 1
b) 2
c) 3
d) 5
Convert 9.45 x 10^-4 to standard notation.
a) 0.00000945
b) 0.000000945
c) 0.0000000945
d) 0.00000000945
What is 4.0 x 10^3 divided by 2.0 x 10^1?
a) 0.5 x 10^2
b) 0.5
c) 5.0
d) 5.0 x 10^0
How many significant figures are in the number 50000?
a) 1
b) 2
c) 3
d) 5
Express 0.00000507 in scientific notation.
a) 5.07 x 10^-8
b) 5.07 x 10^-7
c) 5.07 x 10^-6
d) 5.07 x 10^-5
What is the result of (3.5 x 10^3) x (1.2 x 10^4)?
a) 3.5 x 10^7
b) 3.5 x 10^12
c) 3.5 x 10^16
d) 3.5 x 10^24
How many significant figures are in the number 0.005040?
a) 2
b) 3
c) 4
d) 5
Convert 7.8 x 10^-9 to standard notation.
a) 0.000000078
b) 0.0000000078
c) 0.00000000078
d) 0.000000000078
Express 4,300,000,000 in scientific notation.
a) 4.3 x 10^6
b) 4.3 x 10^7
c) 4.3 x 10^8
d) 4.3 x 10^9
What is the result of (7.2 x 10^5) – (2.8 x 10^4)?
a) 4.4 x 10^1
b) 7.2 x 10^5 – 2.8 x 10^4
c) 6.4 x 10^5
d) 7.2 x 10^5 + 2.8 x 10^4
How many significant figures are in the number 1000?
a) 1
b) 2
c) 3
d) 4
Convert 6.02 x 10^-6 to standard notation.
a) 0.00000602
b) 0.000000602
c) 0.0000000602
d) 0.00000000602
What is 1.5 x 10^2 divided by 3.0 x 10^1?
a) 0.5 x 10^1
b) 0.5
c) 5.0
d) 5.0 x 10^0
How many significant figures are in the number 600000?
a) 1
b) 2
c) 3
d) 6
Express 0.000025 in scientific notation.
a) 2.5 x 10^-8
b) 2.5 x 10^-7
c) 2.5 x 10^-6
d) 2.5 x 10^-5
What is the result of (9.8 x 10^4) x (3.0 x 10^3)?
a) 9.8 x 10^7
b) 9.8 x 10^12
c) 9.8 x 10^16
d) 9.8 x 10^24
How many significant figures are in the number 0.07050?
a) 2
b) 3
c) 4
d) 5
Convert 3.5 x 10^-10 to standard notation.
a) 0.00000000035
b) 0.0000000035
c) 0.000000000035
d) 0.0000000000035
Express 5,000,000,000 in scientific notation.
a) 5.0 x 10^6
b) 5.0 x 10^7
c) 5.0 x 10^8
d) 5.0 x 10^9
What is the result of (3.2 x 10^5) – (1.7 x 10^4)?
a) 1.5 x 10^1
b) 3.2 x 10^5 – 1.7 x 10^4
c) 1.5 x 10^5
d) 3.2 x 10^5 + 1.7 x 10^4
How many significant figures are in the number 0.9000?
a) 1
b) 2
c) 3
d) 5
Convert 6.75 x 10^-3 to standard notation.
a) 0.000675
b) 0.0000675
c) 0.00000675
d) 0.000000675
What is 2.0 x 10^3 divided by 4.0 x 10^1?
a) 0.5 x 10^2
b) 0.5
c) 5.0
d) 5.0 x 10^0
How many significant figures are in the number 4000?
a) 1
b) 2
c) 3
d) 4
Express 0.0000324 in scientific notation.
a) 3.24 x 10^-8
b) 3.24 x 10^-7
c) 3.24 x 10^-6
d) 3.24 x 10^-5
What is the result of (2.6 x 10^4) x (5.0 x 10^3)?
a) 2.6 x 10^7
b) 2.6 x 10^12
c) 2.6 x 10^16
d) 2.6 x 10^24
How many significant figures are in the number 0.003500?
a) 2
b) 3
c) 4
d) 5
Convert 4.8 x 10^-6 to standard notation.
a) 0.0000048
b) 0.00000048
c) 0.000000048
d) 0.0000000048
Express 8,000,000,000 in scientific notation.
a) 8.0 x 10^6
b) 8.0 x 10^7
c) 8.0 x 10^8
d) 8.0 x 10^9
What is the result of (3.1 x 10^5) – (1.6 x 10^4)?
a) 1.5 x 10^1
b) 3.1 x 10^5 – 1.6 x 10^4
c) 1.5 x 10^5
d) 3.1 x 10^5 + 1.6 x 10^4
How many significant figures are in the number 100.00?
a) 1
b) 2
c) 3
d) 5
Convert 2.85 x 10^-5 to standard notation.
a) 0.00000285
b) 0.000000285
c) 0.0000000285
d) 0.00000000285
What is 3.0 x 10^2 divided by 6.0 x 10^0?
a) 0.5 x 10^2
b) 0.5
c) 5.0
d) 5.0 x 10^0
How many significant figures are in the number 9000?
a) 1
b) 2
c) 3
d) 4
Express 0.0000456 in scientific notation.
a) 4.56 x 10^-8
b) 4.56 x 10^-7
c) 4.56 x 10^-6
d) 4.56 x 10^-5
What is the result of (4.4 x 10^4) x (2.5 x 10^3)?
a) 4.4 x 10^7
b) 4.4 x 10^12
c) 4.4 x 10^16
d) 4.4 x 10^24
How many significant figures are in the number 0.0005600?
a) 2
b) 3
c) 4
d) 5
Convert 3.4 x 10^-8 to standard notation.
a) 0.000000034
b) 0.0000000034
c) 0.00000000034
d) 0.000000000034
Express 9,200,000,000 in scientific notation.
a) 9.2 x 10^6
b) 9.2 x 10^7
c) 9.2 x 10^8
d) 9.2 x 10^9
What is the result of (2.7 x 10^5) – (1.3 x 10^4)?
a) 1.4 x 10^1
b) 2.7 x 10^5 – 1.3 x 10^4
c) 1.4 x 10^5
d) 2.7 x 10^5 + 1.3 x 10^4
How many significant figures are in the number 50.00?
a) 1
b) 2
c) 3
d) 5
Convert 6.15 x 10^-4 to standard notation.
a) 0.000615
b) 0.0000615
c) 0.00000615
d) 0.000000615
What is 3.0 x 10^2 divided by 3.0 x 10^0?
a) 1.0 x 10^2
b) 1.0
c) 10
d) 1.0 x 10^0
How many significant figures are in the number 600?
a) 1
b) 2
c) 3
d) 5
Express 0.0000713 in scientific notation.
a) 7.13 x 10^-8
b) 7.13 x 10^-7
c) 7.13 x 10^-6
d) 7.13 x 10^-5
What is the result of (3.9 x 10^4) x (6.0 x 10^3)?
a) 3.9 x 10^7
b) 3.9 x 10^12
c) 3.9 x 10^16
d) 3.9 x 10^24
How many significant figures are in the number 0.000450?
a) 2
b) 3
c) 4
d) 5