Mathematics Specification A - 4MA1 PearsonEdexcel

Decimals

Gbogbo ọrọ náà

Decimals are the language of measurement. Every time you read a digital scale, compare prices or record a scientific result, you rely on decimal notation to express values that fall between whole numbers. Mastery of decimals feeds directly into percentages, standard form and calculator work across both Edexcel papers.

You will learn to read, write and order decimals, convert fluently between decimals, fractions and percentages, and understand why every terminating decimal can be written as a fraction. Higher tier students will also discover how to tame recurring decimals using algebra.

Ebumnobi

Use decimal notation
Understand place value
Order decimals
Convert a decimal to a fraction or a percentage
Recognise that a terminating decimal is a fraction
[Higher] Convert recurring decimals into fractions

Akọmọ Ojú-ẹkọ

A stopwatch reading of 10.83 seconds, a petrol price of 1.479 per litre, the thickness of a coin measured as 0.175 cm: decimal notation lets us pin down quantities more precisely than whole numbers ever could. The digits to the right of the decimal point represent tenths, hundredths, thousandths, and so on.

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Ayẹwo Ẹkọ

Ekele diri gi maka imecha ihe karịrị na Decimals. Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.

Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.

Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.

What is 0.75 as a fraction in its simplest form? A) 75/10 B) 3/4 C) 7/5 D) 15/20 Answer: B
Which decimal is the largest? A) 0.509 B) 0.59 C) 0.5 D) 0.519 Answer: B
What is 0.6 as a percentage? A) 0.6% B) 6% C) 60% D) 600% Answer: C
Which fraction gives a terminating decimal? A) 1/3 B) 2/7 C) 3/8 D) 5/6 Answer: C
What is the value of the digit 4 in 0.0041? A) 4 tenths B) 4 hundredths C) 4 thousandths D) 4 ten-thousandths Answer: C