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Question 1:
(1.4 × 106) × (1.2 × 103) = __?__
	2.6 × 109		2.6 × 104
	1.7 × 109		1.7 × 1018

Question 2:
(4.5×105) ÷ (1.5×103) = __?__
	3 × 108		3 × 102
	3 × 1015		3 × 104

Question 3:
(2 × 103)(3 × 104) = __?__
	5 × 107		6 × 101
	6 × 1012		6 × 107

Question 4:
The smallest known star in the universe is OGLE-TR-122b. It has a diameter of 8.29 × 103 km. The largest known star in the universe, VY Canis Majoris, is about 1.67 × 105 times larger than OGLE-TR-122b. What is the diameter of VY Canis Majoris?
	2.38 × 109 km		1.38 × 109 km
	1.38 × 1011 km		7.3 × 107 km

Question 5:
There are 3.2×108 virus in a sample vile. How many total number of virus will there be in 5,000 such vile?
	16×108		16.0×1012
	1.6×1012		1.6×1011

Question 6:
= __?__
	4 × 107		4 × 1012
	4 × 10−1		4 × 101

Question 7:
Find the quotient. 360,000,000 ÷ 0.0008
	4.5 × 1010		4.5 × 1011
	4.5 × 1012		4.5 × 109

Question 8:
Size of a Helium atom is 62 pico meter. If 105 Helium atoms are placed in a straight line, how long line will it make? (1 pico meter = 10−12 meter)
	6.2 × 10−17 meter		6.2 × 10−7 meter
	62 × 10−6 meter		6.2 × 10−6 meter

Question 9:
Weight of a Hydrogen atom is 1.66 × 10−27 kg. How many Hydrogen atoms are there in a container that has 8.3 × 10−3 kg of Hydrogen?
	5 × 1024 atoms		5 × 10−24 atoms
	5 × 1027 atoms		5 × 1030 atoms

Question 10:
(2 × 10 -3) (2 × 108) = __?__
	4 × 105		4 × 1011
	4 × 10−5		4 × 106