2+2=4
0*0=0
2312314341243/4512473=637721
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There is no simple answer because there is no simple rule for primes: it is certainly NOT an arithmetic progression.
The difference between each number in an arithmetic series
arithmetic sequence this is wrong
It'll help you to know that 20% is the same amount as 0.2, and thatthe word "of" in word-problems almost always means "times".Knowing both of those facts, you can re-write the question: 0.2 x 80,and then it's easy to do the arithmetic, and find that it's 16 .
it facilitates arithmetic calculations using fractions. Especially with calculators.