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They are testing you know what a tenth, or an eighth or a fith is.
They're not. It's almost certainly a place value question, so they want to know students can identify which digit represent the tenths. There are two digits, the first shows how many units, the second how many tenths.
That just seems to be what someone on Mumsnet decided.
Well there is no way I'm serching Mum's net to find out.
They are testing you know what a tenth, or an eighth or a fith is.
You really think that, at KS2, ie primary school level, ie 7-11 year olds, a valid and sensible way of testing whether a pupil knows how many tenths there are in a whole $something is to phrase the question as "how many tenths are there in 1.5?" and to expect the answer "10"?
Really?
threesixty, seventwenty and teneighty, which I'm sure most of the people here could guess at, may not mean a lot to a doddery old maths teacher.
Unless you're French, as I learned back in ten nine hundred four twenties and eleven.
possibly, tho I do wonder if "twelve hundred" is an Americanism, "three sixty" I'm pretty sure is slang, but yeah I could be talking cobblers.I think you're mixing up two concepts - mathematical rules (BODMAS and the like), and mathematical culture (how you talk about maths)
hmm 21=twenty and one, yeah different countries do numbers differently, fair enough, but surely there is still a national standard? would a French maths teacher kick off if you said "une mille neuf cent neuf dix et une" ? Coz if my 20 odd year old cmel French is right both are 1991 it's just that yours is correct and mine is merely describing the number. Kinda like 1,200 and twelve hundred.unless you're French
are we sure, is this thread second or third hand, what was the exact wording of the question, what was the answer and was it on the same test as the 868 question? seems weird that they would have a place value question followed by a dubiously simplistic question like that.They are testing you know what a tenth, or an eighth or a fith is.
seems weird that they would have a place value question followed by a dubiously simplistic question like that
Especially if they used the same language and wording for both questions, making it impossible to tell what the question is asking!
(Which is why I'm pretty sure it is a place value question too)
It's mathematics - the correct answer shouldn't be different depending on the assumed knowledge of the student.
On the contrary - Ten is a defined term in the context of the exercise. It is also an exercise in critical reading.
Oooo, oooo! I found a relevant meme:
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That's all
OK, so if it's hundreds, tens and units, what is the name of the place value of the first number after a decimal point called if it's not tenths.
would a French maths teacher kick off if you said "une mille neuf cent neuf dix et une" ?
Actually.. mille neuf cent quatre-vingt onze sounds right so maybe you can do both.
In Welsh incidentally there's a traditional vigesimal (20 based, sort of like the French) counting system but they've introduced a decimal system where 13 is un deg tri (one ten three) and 37 is tri deg saith, and it's strict without any irregularities. Must make teaching hundreds tens and units nice and easy 🙂
In Welsh incidentally there's a traditional vigesimal
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My Grandma used to confuse me when telling someone the time. She said 25 past as "[i]five and twenty a'ter[/i]"!possibly, tho I do wonder if "twelve hundred" is an Americanism, "three sixty" I'm pretty sure is slang, but yeah I could be talking cobblers.
Cheers,
Jamie
She said 25 past as "five and twenty a'ter"!
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See also KJV Bible: "The days of our years are threescore years and ten"
As molgrips mentioned, leftovers from quasi vigesimal system? A score is still used now.She said 25 past as "five and twenty a'ter"!
With the exceptions of (whole) bike weights and height I've always dealt with/thought in the decimal system, thinking about counting in other systems/units/base always seems a bit of a head ****.