Question

【题目】根据算式选择正确答案，把序号写在横线上。

A.twelve B. fourteen C. fifteen D. seven E. five

1. three+ twelve =_____

2. thirteen- eight=_____

3. fourteen – seven=_____

4. six×two=______

5. four+ two + eight=______

Answer 1

【答案】1.C 2.E 3.D 4.A 5.B

【解析】

略