Using each of the Integers (-2), (+8), (-6), and (+1) at least once, create four different expressions that include + - / and x at least once and result in an answer between (-10) and (+10)
Using each of the Integers (-2), (+8), (-6), and (+1) at least once, create four different expressions that include + - / and x at least once and result in an answer between (-10) and (+10)
@Mathematics
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OpenStudy (eyust707):
do u just want an answer?? or do u wanna know how
OpenStudy (anonymous):
i dont know how and i need ans answer lol
OpenStudy (eyust707):
would you like to learn how?
OpenStudy (anonymous):
um well can u plz give me the equations? (answer)
OpenStudy (eyust707):
hehe you dont learn anything that way..
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OpenStudy (anonymous):
ik
OpenStudy (eyust707):
sorry someone else might do your homework for you but I won't
OpenStudy (anonymous):
ok then teach me
OpenStudy (eyust707):
ok so with this one we gotta kinda anticipate what will happen.. since the numbers need to be between that rang the goal here is to keep the numbers reletively small
OpenStudy (eyust707):
also we have to make a divion so well have to use easy number for that
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OpenStudy (anonymous):
ok
OpenStudy (eyust707):
we have -2 8 -6 and 1 the division should be done first to get it out of the way
OpenStudy (anonymous):
...okk
OpenStudy (eyust707):
so divide two of those numbers
OpenStudy (anonymous):
any two?
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OpenStudy (eyust707):
yep any two.. but i would pick an easy two
OpenStudy (anonymous):
like?
OpenStudy (eyust707):
thats what you gotta figure out...
OpenStudy (eyust707):
do you know what division is?
OpenStudy (anonymous):
yes of course! so i could divide 8 and -6?
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OpenStudy (eyust707):
well those two would be difficult to divie because the answer is 8/6 = 4/3
OpenStudy (eyust707):
try another two
OpenStudy (anonymous):
ok, um -2 / 1?
OpenStudy (eyust707):
that works... but we need to keep our numbers small because we want our answer to be small.. so if it was me i would use this opportunity to get rid of a big number
OpenStudy (anonymous):
ok 8 / -2
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OpenStudy (eyust707):
yea! thats your best bet
OpenStudy (eyust707):
so whats that equal
OpenStudy (anonymous):
-4
OpenStudy (eyust707):
ok so now we have -4.. we need to either + - or * to any of these numbers -2 -6 or 1
OpenStudy (eyust707):
you can decide how to do this next step just remember we need to keep our numbers small
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OpenStudy (anonymous):
im confused already
OpenStudy (eyust707):
ok so we have -4
OpenStudy (eyust707):
and we have either three options
we can add
we can subtract
or we can multiply
OpenStudy (eyust707):
which one would you like to do
OpenStudy (anonymous):
for what?
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OpenStudy (eyust707):
for the next step
OpenStudy (anonymous):
....so what options do i have? i dont know what to do
OpenStudy (eyust707):
ok it seems you dont understnad what the question is asking for
OpenStudy (eyust707):
lets look back up to the top
OpenStudy (anonymous):
ok
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OpenStudy (eyust707):
Using each of the Integers (-2), (+8), (-6), and (+1) at least once, create four different expressions that include + - / and x at least once and result in an answer between (-10) and (+10)
this seems confusing but i promise its hecka easy once you it clicks
OpenStudy (anonymous):
ok whatever u say!
OpenStudy (eyust707):
ok so basically what they want you to do is add subtract multiply and divide
OpenStudy (anonymous):
right
OpenStudy (eyust707):
and you must you those number they give you once each
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OpenStudy (anonymous):
ok
OpenStudy (eyust707):
the only restrictoin is that your number is smaller than 10
OpenStudy (anonymous):
yup
OpenStudy (eyust707):
otherwise you are free to add sub mult and divide those numbers in any sequence you want
OpenStudy (anonymous):
m hm
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OpenStudy (eyust707):
we divided first cause it usually is the trickiest
OpenStudy (anonymous):
ok
OpenStudy (eyust707):
but to satisfy the question we still need to multiply add and subtract
OpenStudy (anonymous):
ok so can i multiply next then?
OpenStudy (eyust707):
sure! =)
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OpenStudy (anonymous):
ok, but what do i multiply?
OpenStudy (eyust707):
so we ended with -4 what would you like to multiply it by?
OpenStudy (anonymous):
so out of the given numbers right?
OpenStudy (eyust707):
yeo but we cant use one we already used
OpenStudy (anonymous):
ok so multiply -4 by . . . -6?
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OpenStudy (eyust707):
well we want small numbers... rember our restricton
OpenStudy (anonymous):
ok so multiply by .... what would be the best?
OpenStudy (eyust707):
lol theres only one other option
OpenStudy (anonymous):
....whic is? . . . -2?
OpenStudy (anonymous):
no wait +1
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OpenStudy (eyust707):
we used negitive 2 in the first exquation
OpenStudy (eyust707):
yep!
OpenStudy (anonymous):
ok so then go -4 x +1
OpenStudy (eyust707):
ok so so far we have
8/-2 = -4
-4 * 1 =
OpenStudy (anonymous):
-4
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OpenStudy (eyust707):
yeo whats it equal
OpenStudy (eyust707):
=)
OpenStudy (eyust707):
ok do you want to plus or minus?
OpenStudy (anonymous):
umm plus .. .-6?
OpenStudy (eyust707):
sure
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OpenStudy (anonymous):
which equals -5, and the i have to subtract . . but i used all the numbers
OpenStudy (eyust707):
8/-2 = -4
-4 * 1 = -4
-4 + -6 = ??
OpenStudy (anonymous):
-5
OpenStudy (eyust707):
-4 + -6 is the same as
-4 - 6
OpenStudy (anonymous):
ok
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OpenStudy (eyust707):
what -1 -1 = ??
OpenStudy (anonymous):
-2
OpenStudy (eyust707):
ok.. what about -2 -2 =??
OpenStudy (anonymous):
-4
OpenStudy (eyust707):
nice!
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OpenStudy (eyust707):
what about -4-6=??
OpenStudy (anonymous):
-10 .. why r u asking me these? arent we doing the equation
OpenStudy (eyust707):
nice! hehe because you just told me that -4 -6 = -5 ; )
OpenStudy (anonymous):
ooo
OpenStudy (eyust707):
8/-2 = -4
-4 * 1 = -4
-4 + -6 = -10
-10 -?? = ???
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OpenStudy (anonymous):
7
OpenStudy (eyust707):
ok so if you read it you have to use each number "at least once" this means you are allowed to use a any number twice if you would like
OpenStudy (anonymous):
ok...
OpenStudy (eyust707):
so pick one that will make -10 become closer to 0
OpenStudy (anonymous):
umm.... -6?
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