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Step-5

Title: Percentage Decrease

Grade: 8-a Lesson: S2-L4

Explanation: Hello Students, time to practice and review the steps for the problem.

Lesson Steps

Step	Type	Explanation	Answer
1	Problem	Find 280 decreased by 4%.
2	Step	Firstly, the percent of fractional multiple.	\$280 of 4%\$
3	Step	The percentage sign % means percent, equivalent to the fraction of 1/100.	\$280 \times (4/100)\$
4	Step	After simplification.	\$(280 \times 4)/100\$ = \$11.2\$
5	Step	Subtract the result from Step 3 to the original value.	\$ 280 - 11.2 \$ = \$268.8\$
6		Answer	B

Step

Type

Explanation

Answer

Problem

Find 280 decreased by 4%.

Step

Firstly, the percent of fractional multiple.

\$280 of 4%\$

Step

The percentage sign % means percent, equivalent to the fraction of 1/100.

\$280 \times (4/100)\$

Step

After simplification.

\$(280 \times 4)/100\$ = \$11.2\$

Step

Subtract the result from Step 3 to the original value.

\$ 280 - 11.2 \$ = \$268.8\$

Answer