Percentages
Akopọ
Percentages are the language money speaks. A discount in a sale, the interest on a loan, a test score, a pay rise, the VAT on a receipt: all of them are percentages, and being quick with them is one of the most useful everyday skills mathematics gives you. A percentage is simply a fraction out of 100, which is exactly what makes comparisons so easy.
In this lesson you will learn to find a percentage of an amount, write one quantity as a percentage of another, and handle percentage increases and decreases with confidence. You will then meet the two ideas examiners love to test: the difference between simple and compound interest, and reverse percentages, where you work backwards from the final amount to the original. Master these and a whole class of exam questions becomes routine.
Awọn Afojusun
- Calculate a given percentage of a quantity.
- Express one quantity as a percentage of another.
- Calculate percentage increase or decrease.
- Calculate with simple and compound interest.
- Calculate using reverse percentages. (Extended only)
Akọ̀wé Ẹ̀kọ́
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
Ìdánwò Ẹ̀kọ́
Oriire fun ipari ẹkọ lori Percentages. Ni bayi ti o ti ṣawari naa awọn imọran bọtini ati awọn imọran, o to akoko lati fi imọ rẹ si idanwo. Ẹka yii nfunni ni ọpọlọpọ awọn adaṣe awọn ibeere ti a ṣe lati fun oye rẹ lokun ati ṣe iranlọwọ fun ọ lati ṣe iwọn oye ohun elo naa.
Iwọ yoo pade adalu awọn iru ibeere, pẹlu awọn ibeere olumulo pupọ, awọn ibeere idahun kukuru, ati awọn ibeere iwe kikọ. Gbogbo ibeere kọọkan ni a ṣe pẹlu iṣaro lati ṣe ayẹwo awọn ẹya oriṣiriṣi ti imọ rẹ ati awọn ogbon ironu pataki.
Lo ise abala yii gege bi anfaani lati mu oye re lori koko-ọrọ naa lagbara ati lati ṣe idanimọ eyikeyi agbegbe ti o le nilo afikun ikẹkọ. Maṣe jẹ ki awọn italaya eyikeyi ti o ba pade da ọ lójú; dipo, wo wọn gẹgẹ bi awọn anfaani fun idagbasoke ati ilọsiwaju.
- What is 15% of 240? A. 16 B. 36 C. 255 D. 360 Answer: B
- A jacket costing $80 is reduced by 15% in a sale. What is the sale price? A. $12 B. $65 C. $68 D. $92 Answer: C
- A student scored 18 out of 40 in a test. What percentage is this? A. 18% B. 22% C. 40% D. 45% Answer: D
- $2000 is invested at 5% per year compound interest. What is the value after 2 years? A. $2100.00 B. $2200.00 C. $2205.00 D. $2210.00 Answer: C
- After a 20% reduction, a coat costs $96. What was the original price? A. $76.80 B. $115.20 C. $120.00 D. $480.00 Answer: C
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
Awọn Iwe Itọsọna Ti a Gba Nimọran
Ṣe Adaṣe Awọn Ibeere Idanwo Adaṣe
Ṣe o fẹ ṣe adaṣe awọn ibeere idanwo adaṣe nipa Percentages? Ṣe igbasilẹ ohun elo Green Bridge CBT lati wọle si awọn ibeere idanwo adaṣe ati awọn ayẹwo adaṣe kikun fun koko-ọrọ yii.
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