Fractions, Decimals and Percentages: IGCSE Core Number Skills | 分数、小数与百分比：IGCSE核心数字技能

📚 Fractions, Decimals and Percentages: IGCSE Core Number Skills | 分数、小数与百分比：IGCSE核心数字技能

This revision guide brings together the essential IGCSE number skills for fractions, decimals and percentages. These three representations are connected, and mastering their conversions will help you solve exam questions accurately and efficiently.

本复习指南汇集了IGCSE数字部分关于分数、小数和百分比的核心技能。这三种表示方法相互关联，掌握它们之间的转换将帮助你准确、高效地解答考试题目。

1. Why Fractions, Decimals and Percentages Matter | 为什么分数、小数与百分比重要

In IGCSE Mathematics, fractions, decimals and percentages are three equivalent ways of describing parts of a whole. Being able to switch quickly between them is an essential number skill.

在IGCSE数学中，分数、小数和百分比是描述整体部分的三种等价方式。快速在它们之间转换是一项核心数字技能。

You will meet these forms in topics such as probability, ratio, compound interest, mensuration and data handling. Strong number skills give you a reliable foundation for problem solving across the whole syllabus.

你会在概率、比、复利、测量和数据处理等主题中遇到这些形式。扎实的数字技能为你在整个课程体系中解决问题提供了可靠基础。

2. Equivalent Forms and the Key Conversions | 等价形式与关键转换

Some conversions must be known instantly. The table below shows common equivalents that appear regularly in IGCSE

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