New posts in arithmetic

How to solve the problem on income and expenditure? [closed]

arithmetic percentages

Is -5 bigger than -1?

inequality arithmetic absolute-value

Why does multiplication act like scaling and rotation of a vector in the complex plane? [duplicate]

geometry complex-numbers arithmetic geometric-interpretation

Expression with last digits different

arithmetic

In the United States, coins have certain thicknesses. If a stack of these coins is exactly $14$ mm high, how many coins are in the stack?

contest-math arithmetic

The difference of two coprime composites

elementary-number-theory modular-arithmetic arithmetic gcd-and-lcm conjectures

$\lfloor (2+\sqrt{3})^n \rfloor $ is odd

elementary-number-theory recurrence-relations arithmetic ceiling-and-floor-functions parity

Squaring both sides when units are different?

algebra-precalculus number-theory arithmetic

Which is greater: $1000^{1000}$ or $1001^{999}$

algebra-precalculus inequality arithmetic exponentiation rational-numbers

Is it possible to calculate the arithmetic mean from the geometric mean?

arithmetic

What's the difference between $3^{3^{3^3}}$ and $27^{27}\;$?

arithmetic exponentiation

How long to catch up to a stream started 1 hour ago at 1.5x speed?

algebra-precalculus arithmetic word-problem

What's the formula for the 365 day penny challenge? [duplicate]

summation arithmetic

Explaining why cross multiplication works using a pie

arithmetic intuition

Modulo 2 binary division (XOR not subtracting) method

arithmetic binary

On the regularity of the alterning sum of prime numbers

number-theory prime-numbers arithmetic prime-gaps

Star of David Math Puzzle

arithmetic puzzle

Mental $n-$th root of $N$

algebra-precalculus arithmetic roots recreational-mathematics

$ 7\mid x \text{ and } 7\mid y \Longleftrightarrow 7\mid x^2+y^2 $

elementary-number-theory modular-arithmetic arithmetic divisibility sums-of-squares

Request for a proof of the following continued-fraction identity

arithmetic recreational-mathematics problem-solving pi continued-fractions