How do kids learn to subtract nowadays. Say take 600 - 426 = ?
When I was at school you added 10 to the top and one to the bottom (I still do today) but my granddaughter is having none of it. But cant remember how she was taught to do it. Just started senior school. Thanks.
ha! until i read this question, i hd no idea it was done in different ways! I was tught to borrow from the next column to the left and just ssumed tht was "the" way!
It's a bit like dividing fractions. I was taught to invert the numerator and denominator and multiply. I was a wizard at them at the age of 10 but I was about 14 before I understood the process.
As far as I can see, Kassee just wants to be told what method her granddaughter uses. Not really seeking a disquisition on how much better the old methods were when we all had hundreds of fingers to count on...
It may be worth mum/dad asking the school if the child doesn't know. We have explored various ways here but we can't be certain how the granddaughter was taught. I know how it's taught in the schools I've worked in but I would not discourage any child from using another method if it works for them.
in the good old days of the British raj the boys and gurlz in India
would do the borrow 10-6 equals four
and then the pay back was below the calculation
so you then went ten minus two is eight- SUBTRACT the carry is seven
six minus four is two subtract the carry is one .....one-seven-four
how do I know ?
at age eight sister marie-christine went on holiday and sister Veronica took our class ( fundamental arithmetic but sister V was no fun at all ) and in around ten minutes destroyed like forever our ability to subtract.
Took the rest of term to get over that one
and us kidz ? made us very wary of 'new' teachers 'just coming in for this lesson'
sister veronica had been brought up in india
my mother also british rag said later - yeah we did it like that youre right
even in the fifties changing primary schools was chaos