5
1+1=2+3=5+7=12+12=24
1/5 of 15 is 15/ 0.2 = 3
5 times, simple maths
It is 2 : 5 : 7 or 1/7 : 5/14 : 1/2
4.5
The prime numbers between 1 and 10 are 1, 3, 5, and 7.
It is [1 + sqrt(5)]/2 It is the solution to the equation 1/x = x/(1+x)
Lots of maths problems equate to -5:1 x -5 = -55 x -1 = -51 - 6 = -5-3 -2 = -5And so on...
grade 5 maths should be adding numerator and denominator.converting deciamals to fractions.
3*5 = 15
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maths syllebus of b.S.c. Second year