第一章 數(shù)與計算
一、數(shù)的概念
1.整數(shù)
[整數(shù)]
[整數(shù)的讀法]
[整數(shù)的寫法]
[近似數(shù)問題]
[整數(shù)大小比較]
2.小數(shù)
[小數(shù)的意義]
[小數(shù)的分類]
[小數(shù)的性質(zhì)]
[小數(shù)的精確度和有效數(shù)字]
[小數(shù)點(diǎn)的位置移動]
[比較小數(shù)大小]
3.分?jǐn)?shù)
[分?jǐn)?shù)的概念及意義]
[分?jǐn)?shù)與除法的關(guān)系]
[分?jǐn)?shù)的分類]
[分?jǐn)?shù)的轉(zhuǎn)化方法]
[分?jǐn)?shù)的基本性質(zhì)]
[倒數(shù)]
[最簡分?jǐn)?shù)]
[約分和通分]
[分?jǐn)?shù)大小的比較方法]
4.分?jǐn)?shù)與小數(shù)的關(guān)系
[分?jǐn)?shù)化小數(shù)的方法]
[有限小數(shù)化分?jǐn)?shù)的方法]
[無限循環(huán)小數(shù)化分?jǐn)?shù)的方法]
5.百分?jǐn)?shù)
[百分?jǐn)?shù)]
[成數(shù)]
[折扣]
[百分?jǐn)?shù)與小數(shù)的互化]
[百分?jǐn)?shù)與分?jǐn)?shù)的互化]
6.正數(shù)與負(fù)數(shù)
[正數(shù)]
[負(fù)數(shù)]
[正整數(shù)]
[負(fù)整數(shù)]
[整數(shù)]
[正負(fù)數(shù)的意義]
[正負(fù)數(shù)大小的比較]
練習(xí)題
趣味數(shù)學(xué)園
二、數(shù)的整除性
1.數(shù)的整除
[整除]
[整除的性質(zhì)]
[數(shù)的整除特征]
2.質(zhì)數(shù)與合數(shù)
[質(zhì)數(shù)]
[合數(shù)]
[質(zhì)因數(shù)]
[分解質(zhì)因數(shù)]
[分解質(zhì)因數(shù)的方法]
3.因數(shù)與倍數(shù)
[求因數(shù)的個數(shù)]
[公因數(shù)與最大公因數(shù)]
[互質(zhì)]
[兩兩互質(zhì)]
[求最大公因數(shù)的方法]
[利用最大公因數(shù)解題]
[最大公因數(shù)的性質(zhì)]
[公倍數(shù)與最小公倍數(shù)
[求最小公倍數(shù)的方法]
[最小公倍數(shù)的性質(zhì)]
[利用最小公倍數(shù)解題]
4.奇數(shù)與偶數(shù)
[奇數(shù)與偶數(shù)]
[奇數(shù)的性質(zhì)]
[偶數(shù)的性質(zhì)]
練習(xí)題
趣味數(shù)學(xué)園
三、數(shù)的四則運(yùn)算
（一）整數(shù)的計算
1.整數(shù)加減法
[加法]
[減法]
[加減法的關(guān)系]
[口算20以內(nèi)的加減法]
[筆算加法法則]
……
第二章 空間與圖形
第三章 應(yīng)用題
第四章 統(tǒng)計與概率
附錄