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Introduction to Decimals
Introduction to Decimals — from OpenStax Prealgebra 2e.
Introduction to Decimals
Gasoline price changes all the time. They might go down for a period of time, but then they usually rise again. One thing that stays the same is that the price is not usually a whole number. Instead, it is shown using a decimal point to describe the cost in dollars and cents. We use decimal numbers all the time, especially when dealing with money. In this chapter, we will explore decimal numbers and how to perform operations using them.
İndi siz Heç bir hesablama proqramı bu ədədi həll edə bilməz, lakin onun hissələri hesablana bilər. Aşağıdakılardan birini sınayın ya da özünüz yazın.
Burada istifadə edilən simvollar
Tam təsviri, şəkli və hər hərfin nə demək olduğunu görmək üçün hər hansı simvolu vurun.
İnsanlar soruşurlar
Why does the order of operations matter?
Because 2 + 3 × 4 would otherwise be two different numbers. The convention (brackets, exponents, multiplication and division, addition and subtraction) exists so every reader gets the same value from the same expression.
How do I check an arithmetic answer?
Estimate first (round every number and compute roughly), then compare. If the estimate and the exact answer disagree by more than a little, one of them is wrong. The solver shows every operation, so you can find which line went astray.
Why are fractions harder than decimals?
They are not harder, they are more exact: 1/3 is a precise number, 0.333 is an approximation. Fractions need a common denominator to add, which is the one extra step people trip on.
Bu səhifənin bəzi hissələri OpenStax Prealgebra 2e (CC BY-NC-SA 4.0). Bu, bizim üçün çox böyük bir uğurdur, biz bunu çox istəyirik. Onun mənbəyi kommersiya məqsədləri üçün lisenziyalı olduğundan, bu dərs pulsuzdur, heç nə satmır və eyni lisenziyaya əsasən paylaşılır.