填空
He is my __________. I am his son.
I can see ________ pens.
There are _______ pencils in the pencil box.
选词填空
Fourteen _______(plus/minus) five is nineteen.
Fifteen _______(plus/minus) four is eleven.
Seventeen _______(plus/minus) five is twelve.
Seven _______(plus/minus) five is twelve.
The next number to seventeen is _______.
The next number to fourteen is _______.
看图，将单词补充完整
tw_nty
