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Mathematics 7 Online
OpenStudy (anonymous):

can someone please help me with this math question

OpenStudy (anonymous):

where is the math question?

OpenStudy (anonymous):

so I have to solve 41+23 in base five and I did that and got 114 first of all is this right?? then I am asked to show the addition using base 5 blocks and I tried that but the picture just doesnt add up to my math

OpenStudy (anonymous):

.... help me this is due tomarrrow

OpenStudy (anonymous):

is 41 and 23 in base five aswell

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

you can convert to 41 and 23 to decimal and add them up in decimal then convert to base five not sure what they want the result in

OpenStudy (anonymous):

just in base five I got the answer 114 is that correct

OpenStudy (anonymous):

I need help figureing it our in base 5 BLOCKS

OpenStudy (anonymous):

flats longs and units

hartnn (hartnn):

yes, 41+23 = 114 in base 5 show that pic which doesn't add up, i'll try to find the error

OpenStudy (anonymous):

okay so I have 1 flat 3 longs and 1 unit to make 25+15+1= 41 is this right so far?

OpenStudy (anonymous):

then I have 4 longs and 3 units to make 23

hartnn (hartnn):

yes.

hartnn (hartnn):

both correct

OpenStudy (anonymous):

oaky so when I add up how do I make the picture

OpenStudy (anonymous):

4 flats 1 long and 4 units ??? to make 114

OpenStudy (anonymous):

....

hartnn (hartnn):

ok, so u nits and 1 units makes 4 units now 3 longs +4 longs will combine to 1 flat and and 2 longs.... right ?

hartnn (hartnn):

**so, 3 units and...

hartnn (hartnn):

how u got 1 long ?

OpenStudy (anonymous):

I am confused what are u saying is the answer

OpenStudy (anonymous):

If i have to flats and 3 longs and 4 units then I will have 69 in total

hartnn (hartnn):

ok, let me try again so 3 units and 1 units makes 4 units----> last 4 now 3 longs +4 longs will combine to 1 flat(50) and and 2 longs(10)--->1 (for that 10 long ) one flat from here, combines with one flat previously to give 100---->1 in hundred's place

OpenStudy (anonymous):

oaky so are u saying that in the base 5 blaocks the flat is 50

OpenStudy (anonymous):

So If i get this right the answer is....

OpenStudy (anonymous):

2 flats two longs and 4 units

hartnn (hartnn):

oh wait, its not fifty, its 25 5 longs (5*5) make 1 flat (25)

OpenStudy (anonymous):

exactly

hartnn (hartnn):

2 flats two longs and 4 units is absolutely correct

OpenStudy (anonymous):

well no cuz that is 50 + 10 + 4 the answer is 114 not 64

hartnn (hartnn):

the answer is 114 in base 5 and 64 in base 10

OpenStudy (anonymous):

how ??

hartnn (hartnn):

you are confusing between bases ? decimal addition 41+23 = 64 base 5 : 41+23 = 114

OpenStudy (anonymous):

I get the addition part but how does it work in blocks

OpenStudy (anonymous):

i think of it as 25 and 25 and 5 and 5 and 4 ???

hartnn (hartnn):

yes, those 25 and 25 become 50 ---> 1 (leftmost 1) 5 and 5 become 10 ---->1(middle 1) 4 (rightmost 4)

hartnn (hartnn):

so 114

OpenStudy (anonymous):

how??????????

hartnn (hartnn):

3 units and 1 units makes 4 units----> last 4 now 3 longs +4 longs will combine to 1 flat(25) and and 2 longs(10)--->1 (for that 10 long ) one flat from here, combines with one flat previously to give 50---->1 in hundred's place i think you have doubts on when to put 1 or 2 in middle and leftmost place. for middle, if there are n*10, you put n like if there were 30, you would have put 3 for leftmost digit, if there are n*50, you put n like if it were 100, you would put 4

hartnn (hartnn):

thats why for 50 i put 1 in leftmost part and for 10 i put 1 in middle giving 114

OpenStudy (anonymous):

oaky so one more time just to make sure it is RIGHT

OpenStudy (anonymous):

for 41= 1 flat 3 longs and 1 unit and for 23= 4 longs and 3 units regrouping and getting a total of

OpenStudy (anonymous):

2 flats 2 longs and 4 units making 114

OpenStudy (anonymous):

am I right ??

hartnn (hartnn):

yes, correct :)

OpenStudy (anonymous):

oaky that is great thank you so much you are good at this are u a math teacher??

hartnn (hartnn):

wait, let me revise the whole thing, i think i messed up.

hartnn (hartnn):

and i am also a student.

OpenStudy (anonymous):

omg what is it

hartnn (hartnn):

nopes, we are correct :)

hartnn (hartnn):

i used online tools to verify and got it correct....

OpenStudy (anonymous):

are u sure please I need to get these points lol and what tools are u using

hartnn (hartnn):

i used wolframalpha.com and yes, now i am sure.

OpenStudy (anonymous):

oaky that is great thank you so much

hartnn (hartnn):

welcome ^_^

hartnn (hartnn):

oh, and since you are new here, \(\Huge \mathcal{\text{Welcome To OpenStudy}\ddot\smile} \) if you have any doubts browsing this site, you can ask me, or to an ambassador (with an encircled A before their name). Have fun learning with Open Study! :)

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