Decimals, SM-Bank 078

Evaluate the following:

\(1.2\times 8\) (1 mark)

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\(0.8\times 0.7\) (1 mark)

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\(2.5\times 0.04\) (1 mark)

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\(0.05\times 1.6\) (1 mark)

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Show Answers Only

a. \(9.6\)

b. \(0.56\)

c. \(0.1\)

d. \(0.08\)

Show Worked Solution

a. \(1.2\times 8\)	\(= 12\times 8\ ÷\ 10\)
	\(= 96\ ÷\ 10\)
	\(=9.6\)

b. \(0.8\times 0.7\)	\(= 8\times 7\ ÷\ 100\)
	\(= 56\ ÷\ 100\)
	\(=0.56\)

c. \(2.5\times 0.04\)	\(= 25\times 4\ ÷\ 1000\)
	\(= 100\ ÷\ 1000\)
	\(=0.1\)

d. \(0.05\times 1.6\)	\(= 5\times 16\ ÷\ 1000\)
	\(= 80\ ÷\ 1000\)
	\(=0.08\)