连一连。
1.

A．two 2.

B．five 3.

C．three 4.

D．one

5. E. four

选词填空。(每词限用一次)
three  Twenty  twelve  twenty-nine  thirty  at  lost  near  far  by
three  Twenty  twelve  twenty-nine  thirty  at  lost  near  far  by
1. Thirteen plus (加) ________ equals (等于) twenty-five.
2. ________ plus eight equals twenty-eight.
3. Twenty-five plus five equals ________.
4. Twenty-four plus ________ equals twenty-seven.
5. Eight plus twenty-one equals ________.
6. I'm ________.
7. It's ________. Let's walk to school.
8. I go to the park ________ car.
9. Turn left ________ the zoo.
10. Is it ________ from here?

Three dogs have ______ legs. (   )

A．twelve

B．ten

C．fourteen

根据提示完成句子。
1. There are ________________ (20把椅子) in the classroom. 
2. The pencil box is ________ the desk. (在···上)
3. Steven is drawing on the ________.
4. ________ name is Li Ming. ________ is a boy.
5. —How many ________ are there? (55支铅笔)
—There are ________.

算一算
1. nine thousand + one hundred = ___________
2. four thousand one hundred and eighty-six + thirty –seven = ___________
3. six hundred and forty-five + twenty-four = ___________
4. two thousand + three hundred and seventy-six = ___________