Skip to main content

Bidmas, Bedmas, Bodmas, Pedmas And Christmas

This BBC GCSE Bitesize post says, BODMAS stands for 'brackets', 'other', 'division', 'multiplication', 'addition' and 'subtraction'. It's the order in which we carry out a calculation.

But another article says, the order of operations in Maths called BIDMAS. BIDMAS stands for Brackets, Indices, Division and Multiplication, Addition and Subtraction.

The difference is that the second substitute 'o' with 'i', and we can understand that teacher normally chooses easy way to explain whose pupils can understand, exponent or power or indices are out of reach of foundation students, so teachers uses 'other' instead.

And in this article, 'o' actually stands for 'order', as far as my memory can go, my English teacher never teach me 'order' actually means 'Powers and Square Roots, etc.'

In United States, the mnemonic fo Order of Operation is PEMDAS, because brackets are called parentheses by American, and it stands for Parentheses, Exponents, Multiplication, Division, Addition, Subtraction.

There are other forms in other English speaking countries. BIDMAS, BEDMAS, BODMAS, why Americans PEDMAS, so make up a series of words for the collection of Christmas, Candlemas?

Another nice song of BODMAS

Comments

Popular posts from this blog

Panic or panick

There is only one spelling for panic ; the verb is inflected 'panic, panics, panicked, and panicking’. The form panick is used for progressive tense, past tense and past participle. We don't write panick today, though English speakers from a few hundred years ago might have (in the same way they might have written musick). When the alternate spelling “panick” is used for the past participle: "I panicked last night at the disco." When it’s use for progressive tense: “Invariably, when markets are panicking, they sell the stocks quickly.” It's the rule for root words ending in "c" is that you have to add “k”, so the spelling is related with the pronunciation. If we don't add the <k>, it looks as if the <c> has to be pronounced /s/. If the "k" was not there, “panicing” would look like the word which is supposed to be pronounced as if it is ended in "sing," while “paniced” would be pronounced like “panised”. The same

Does pearls reproduce by itself through time

At the request of several families he and Mrs Legge gave a home for some months to a young Dutch girl, a granddaughter of the first Dutch governor of the Straits Settlements. She had several pearls of which the Dutch residents were great collectors, got from oysters found in a river of the Malay Peninsula, when she left them she gave Mrs Legge a small box containing a large pearl the size of a pea, with a blue spot on it, and two others not so large. This box was then put away and locked up. Several weeks later he took it out and on opening it discovered more than a dozen pearls, most of them very small. Astonished at the phenomenon he called his chief servant, a Portuguese, who happened to enter the room and who expressed no surprise but declared it to be a common occurrence. On enquiry he found that many of the Dutch people had jars of pearls, large and small, which had accumulated in this way. Some years later he related the incident at dinner on board ship. The captain was a cautio

Sans Foy, Sans Joy and Sans Loy

Sans: without The origin of sans was Old French sanz, from a variant of Latin sine 'without', influenced by Latin absentia 'in the absence of'. Sans Serif, a typeface without short line at the top or bottom of a letter. In the long poem 'The Faerie Queene' by Edmund Spenser, three dark knights  called Sans Foy, Sans Joy and Sans Loy, meaning "Faithless", "Joyless" and "Lawless",  they fought Red Cross Knight Sir George, they are brothers. sans-culotte, literally 'without knee breeches', was a lower-class Parisian republican in the French Revolution. an extreme republican or revolutionary.