1, the number of 5 boxes of 30 is ().

The third number after 2 and 78 is (), and the third number before 39 is ().

3.20 is more than 57 (), and 36 is more than () 10.

Mom bought some apples. Xiao Ming ate half, and there were five left. Mom bought () apples.

Last year, my father was two years older than my mother. Five years later, my father was () years older than my mother.

6, a book, Xiaohua from page 16 to page 35, he read the first ().

Xiao Ming and Xiao Jun caught as many fish. After giving some to grandma, Xiaoming left three fish and Xiaojun left two.

Grandma has a lot of fish.

8. Mingming's house has four floors above and three floors below. This building has () floors.

9. There are two figures. The sum of their addition is 7, and the difference of subtraction is 1. They are () and () respectively.

10 and 15 students stand in a row to count off, even students go skipping rope, and there is only () left in the team.

Classmate.

1 1, Xiao Li mistook the subtraction 6 for 9 when calculating, and the calculated result was better than the correct one.

( )。

12, Xiaodong counted, from 8 to 88, he counted ().

Second, judge. (Tick "√" in brackets for correctness and "×" for error. ) (8 points)

1, and the number "1" means one, one and the first. ( )

The starting point on the ruler is "1". ( )

I am two years younger than my brother this year, and we will be the same age in two years. ( )

4. The two numbers adjacent to 13 are 12 and 14. ( )

Third, find a rule to fill in the numbers. (12)

( 1) 1、2、4、7、 1 1、( ) (2) 80、65、50、35、( )

(3) 1、6、7、 12、 13、( ) (4) 15、3、 13、 1 1、3、( )

4. Fill the box with 3, 5, 6, 8, 9, 7, 2 and 4, and make the equation hold □, each number can only be used once. (8 points)

□+□ = □ + □ = □ + □ = □ + □

Fifth, draw a picture. (8 points, 1 question 3 points, 2 questions 5 points)

1, △ is 3 more than ○.

△△△△△△△△

○○

2. Then draw.

△ ○□△○○□□△○○○□□□

Sixth, solve the problem. (28 points, 7 points for each question)

1. There is a giraffe in the zoo. Its age is two digits minus the smallest two digits and then minus one digit. How old is this giraffe?

2. Xiaojun has 1 1 this exercise book. After giving Xiaodong four exercise books, they have the same number of exercise books. How many exercise books did Xiaodong originally have?

Wang Ming and Li Qiang took part in the race. Li Qiang ran 7 meters less than Wang Ming for the first time, and Wang Ming ran 6 meters more than Li Qiang for the second time. How many meters did Li Qiang run less than Wang Ming in two races?

4. I read a book in Dong Dong. I read seven pages on the first day, and then I read three more pages every day than the day before. How many pages did he read on the third day?