Doing revision and came across this

[glossy warren]

Im doing revision for gcse, but i dont understand this question, do i do bidmas and then break it down? Please can someone explain this to me.
<@&727457814523674674>

@foggy carbon yo g if u here can u help me out

[earnest vapor]

@glossy warren I think the best way to do this is just calculate c and d, neither one is a particularly large number so it's not too bad

[glossy warren]

answer -9

[earnest vapor]

what did you get for c and d

@glossy warren

[glossy warren]

256

40

answer 40

[earnest vapor]

what did you get for c

[glossy warren]

and then 18x14

252

[earnest vapor]

so what is 16*16

let's back up a bit

won't take too long

[glossy warren]

16 squared is 256

[earnest vapor]

heck yeah

so what is 250-256

[glossy warren]

56

[earnest vapor]

not quite

[glossy warren]

wait no

column method in my head so 2 and 2 cancel out, then 5-5 is zero and so ur left with -6

[earnest vapor]

heck yeah

so c=-6

now let's move onto d

what's 18*14?

[glossy warren]

?

didnt understand that one chief

[earnest vapor]

18 times 14

18x14 if you prefer

[glossy warren]

164

[earnest vapor]

not quite

[glossy warren]

252

[earnest vapor]

yep, nice work

what about 252/28

252 divided by 28

slash means divide

[glossy warren]

9

im not gonna lie tho

i used a calculator here

[earnest vapor]

9, nice

another way to think about it

28x10=280, and 252 is 28 less than 252, so 10-1

anyway, negative sign turns it negative, so we have c=-6 and d=-9

now we need to find (-6) x (-9)

[glossy warren]

6x9

54

• and a -

= +

[earnest vapor]

heck yeah

nice work

[glossy warren]

so 54

[earnest vapor]

so answer is 54

[glossy warren]

Thank you bro

[earnest vapor]

no prob

[glossy warren]

how do i do the leaderboard thing

[earnest vapor]

?

[glossy warren]

thats if u want me to do it

[earnest vapor]

oh idek lol

[glossy warren]

alr nvm

thank u anyway tho

[earnest vapor]

you're very welcome