1.63 is 9 times that of (), and 4 times that of () is 128.

2.54 has at most () sixes, and 64 has at most () eights.

3.245 subtract 8 in a row, and you can subtract () several times at most.

4 Six times a number is 78, and eight times this number is ().

5. When a number is divided by 9, the quotient is 17, the remainder is (), and when the remainder is, the dividend is ().

6. Three times a number is 300, and this number is ().

7.0 divided by 6 equals ().

8. 16□÷7=23……6。 In this formula, □ should be filled in ().

Second, I judge right and wrong. (Mark "√" for the right and "×" for the wrong) ×”)( 10/0)

1.0×8=0÷8 ( )

2. When three digits are divided by one digit, the quotient is not necessarily three digits. ( )

3.84 10÷7, there must be a 0 at the end of the quotient. ( )

4. Any divisor that is not divided by 0 will get 0. ( )

In the division formula, the remainder is sometimes less than the divisor. ( )

Third, happy ABC. (Fill in the correct answer number in brackets) (4 points)

1.4800÷6, and there are () zeros at the end of the quotient.

A. 1 B .2 C.3

2. The group whose following numbers are divided by 2 and the remainder is 0 is ().

45，30 1

3. When one digit is divided by three digits, the quotient is ()

A. two digits B. three digits C. it may be two digits or three digits

Xiaohong made 36 flowers, three times as many as Xiaocui, and Xiaocui made () flowers.

A.9 B. 12 C. 108

Fourth, happiness calculation. (40 points)

1. Write directly. (16)

68÷4= 840÷4= 220×4= 180÷3=

480÷3= 9000÷3= 3×500= 1800÷3=

70÷5= 360÷5= 360×0= 4500÷5=

9 1÷7= 280÷2= 200×9= 0÷ 180=

2. estimate. (4 points)

7 1÷8≈ 323÷4≈ 359÷6≈ 103÷2≈

3. Calculate vertically and test the last two small questions. (14)

306÷3 5 17÷5 783÷6

420÷3 209÷3 676÷4

4. Off-mold calculation. (6 points)

(390+30)÷7 2340÷5÷3 2065+4675÷5

5. Fill in the appropriate number in □. (4 points)

( 189-9)÷□=20 (549+8 1)÷□=90

45÷5+□=20 280×2-□=500

Sixth, solve the mathematical problems in life. (3 1)

1. The park brought 180 plates of flowers and put them in three flower beds. How many plates are put in each flower bed on average? (4 points)

Grade three students go to work on the farm. Girls went 156, boys went 124. Four people were divided into a group. How many groups can a * * * be divided into? (4 points)

The school bought 6 books, each with 40 books, and distributed them to 8 classes on average. How many books can each class share? (4 points)

Xiaojun has read a story book and has read 84 pages. The remaining two pages have been read.

Second, if you want to read the remaining pages in 8 days, how many pages do you read on average every day? (4 points)

Mother monkey bought 23 peaches and gave them to four little monkeys as evenly as possible. How many peaches did each little monkey get? Keep the rest for yourself. How many peaches did mother monkey eat? (5 points)

6. There are 365 days in a year and 7 days in a week. How many weeks are there in a year? How many days are left? (5 points)

7. There are 49 third-grade students in Hope Primary School, who are divided into 8 groups on average. How many students are there in each group? How many people are left?