New posts in arithmetic

What is the fallacy in this proof? [duplicate]

arithmetic radicals fake-proofs

Meaning of $\frac{x-y}{y}$ versus $\frac{x}{y}-1$

algebra-precalculus arithmetic

Missing dollar problem [duplicate]

arithmetic puzzle problem-solving

Is the solution to this holiday puzzle unique?

arithmetic puzzle

Why are the order-of-operations conventions good?

notation arithmetic convention

nth powers modulo all primes

number-theory prime-numbers arithmetic modular-arithmetic

Why is two to the power of zero equal to binary one?

arithmetic exponentiation

Calculate simple expression: $\sqrt[3]{2 + \sqrt{5}} + \sqrt[3]{2 - \sqrt{5}}$ [duplicate]

algebra-precalculus arithmetic radicals

How to prove: $\left(\frac{2}{\sqrt{4-3\sqrt[4]{5}+2\sqrt[4]{25}-\sqrt[4]{125}}}-1\right)^{4}=5$?

calculus arithmetic radicals

the first 4 terms of an arithmetic are x,9,3x,3x+y find the sum of first 100 terms of this sequence [closed]

Why does this pattern occur: $123456789 \times 8 + 9 = 987654321$

elementary-number-theory arithmetic recreational-mathematics decimal-expansion

Can an odd number $n$ divide $2^n-1$?

Is a negative number squared negative? [duplicate]

General formula for nth element of the sequence 0, 1, 0, 1, ...

sequences-and-series arithmetic pattern-recognition

Find the number of $X$ from start to end

Simplify : $( \sqrt 5 + \sqrt6 + \sqrt7)(− \sqrt5 + \sqrt6 + \sqrt7)(\sqrt5 − \sqrt6 + \sqrt7)(\sqrt5 + \sqrt6 − \sqrt7) $

arithmetic recreational-mathematics contest-math

Compare two powers of numbers without common divisor

inequality arithmetic exponentiation

What is the process/algorithm for extracting the nth root of x (x and n are integers)? [duplicate]

algorithms arithmetic roots

Simple solving Skanavi book exercise: $\sqrt[3]{9+\sqrt{80}}+\sqrt[3]{9-\sqrt{80}}$ [closed]

algebra-precalculus arithmetic radicals nested-radicals

Doing simple math in your head

arithmetic mental-arithmetic