Arithmetic

For basic math questions about addition, multiplication, fractions, etc.
M
Mature student back to basics
Replies
5
Views
546
Zam
Z
J
hi guys
Replies
6
Views
593
Zam
Z
G
How much Magnesium Chloride and boron am I getting in my solution?
Replies
12
Views
1K
Zam
Z
J
10% ethanol to gasoline?
Replies
4
Views
559
Zam
Z
S
some math thing
Replies
3
Views
355
Zam
Z
N
missing number in the grid
Replies
14
Views
1K
Zam
Z
J
Need Help with Gram cost
Replies
3
Views
650
Zam
Z
R
I need help with unit conversion from 'gCO2 eq/MJ' to 'gCO2 eq/tonne'
Replies
0
Views
438
Roders
R
T
Distance from a known line
Replies
3
Views
397
Otis
Otis
B
Find an unknown number
Replies
4
Views
591
PA3040D
P
N
how many zeros
Replies
5
Views
795
The Highlander
The Highlander
N
simplifying another surds: (sqrt(3 + sqrt(5 - sqrt(13 + sqrt(48))))) / (sqrt(6) + sqrt(2)
Replies
18
Views
2K
Dr.Peterson
Dr.Peterson
G
Please help with "If 100 items normally cost $300 but if I got 300 items I would get it for $800,..."
Replies
1
Views
500
Dr.Peterson
Dr.Peterson
M
Is 4.56(with bar on top of 6) a rational or irrational number?
Replies
5
Views
774
mario99
M
J
Fraction problem: "A boy baked a batch of cookies. only 1/3 of the batch was left after dinner...."
Replies
6
Views
1K
Jignesh77
J
S
Finding prime numbers using the "Petrov method"?
Replies
4
Views
678
Agent Smith
Agent Smith
K
National Mathematics Day (in India)
Replies
5
Views
1K
Agent Smith
Agent Smith
K
Basic percentage question
Replies
5
Views
713
Dr.Peterson
Dr.Peterson
G
Oscar wants to both spend and save the money he earns. For every $7 he puts in his wallet, he puts $3 in savings.
Replies
3
Views
858
galalao0001
G
J
I need help evenly splitting 6 of each of 20 items between 15 people each getting 8 items.
Replies
2
Views
476
Dr.Peterson
Dr.Peterson
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