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填空,84÷4=多少

个位数相减是八,且要从十位提取一个十,那么十位就是7,最后结果是四十几,那么7-4=3 所以填3

Written exercises 书面练习 A Write responses using some or one. 模仿例句写出对应的回答,选用some或one。 Examples: Have some coffee. I've already had some. Have a banana. I've already had one. 1 Have some beer. 2 Have an apple....

9,60,102,339,3039,30318是3的倍数。 知识点: 2的倍数的特征:个位上的数字是0,2,4,6,8。 5的倍数的特征:个位上的数字是0或5。 3的倍数的特征:各个数位上的数字之和能被3整除。

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