maths.free › Arithmetic
Arithmetic
Arithmetic is where every other branch gets its numbers. Type any calculation and watch it evaluated one operation at a time — brackets first, then powers, then multiplication and division, then addition and subtraction.
레슨
Introductory
Order of operations
Brackets, powers, multiply/divide, add/subtract — and why the order is not optional.
3 + 4 * (2 - 1)^2
Introductory
Fractions
Adding, subtracting, multiplying and dividing fractions with a common denominator.
1/2 + 1/3
Introductory
Percentages
Per cent means per hundred; every percentage problem is a fraction over 100.
what is 15% of 80
Introductory
Powers and roots
Exponent rules and simplifying square roots exactly.
sqrt(50)
다른 지점
𝑥 Algebra△ Geometry∿ Trigonometryƒ Precalculus∫ Calculus⊞ Linear Algebraσ Statistics & Probability⊢ Discrete Math & Logicℕ Number Theoryẏ Differential Equationsε Analysis∞ Frontiers