Basic Training Volume 1 (*** 100) 1. Write the number directly. (0.5 points for each question, ***6 points)

0.6? 0.52= 30? 0.5= 0. 1? 0.0 1= 1-0.28=

4.5? 1.5= 8. 1? 0.3= 1.25? 12.5= 3.46+6.54=

2.4? 0.8= 5.7? 0.2= 0.25? 0.4= 9.6? 5? 0.2=

Second, think carefully and fill in carefully. (Per grid 1 minute, ***22 points)

1 and 0.5 have () bits; () There is 24% in it.

2,7 is 0.35 () times; () 2.4 is 480.

3. Because 12? 13= 156, then 1.2? 0. 13=( )。

4、3.72? 2.4=( ) ? 24。

5, 1. 1, 1., 1. 14, the maximum number is () and the minimum number is ().

6, 0.25 tons = () kg; 4.72m = () m () cm.

7. No, fill in the following ○? & gt& lt？ Or? =? .

0.7? 0.4○0.7 2.9? 1.6○2.9

5.46? 1.3○5.46 0.8 1? 7.3○7.3

2.84? 1.2○2.84? 1.02 25? 0.25○2500? 25

8. Two decimal places are rounded to 9.7. The maximum value of these two decimal places is () and the minimum value is ().

9. Fill in the numbers according to the rules.

25.6 , 6.4 , 1.6 , ( ) , 0. 1 , ( )。

10, and fill in the appropriate numbers in brackets.

16? ( )=0.8 ( )? 52= 182

Third, little judge, smart judgment. (Right? , wrong number? . ) (2 points for each question, *** 12 points)

1, 0.25 hours =25 minutes. ( )

2. The multiple of a number 1.0 1 must be greater than this number. ( )

3.0.262626 can be abbreviated as 0. ( )

4、7.69? 0.0 1=7.69? 100。 ( )

5,9 square decimeter =0.9 square meter. ( )

6、 15.2? 0.8? 12.5= 15.2? (0.8? 12.5) ( )

Fourth, sit in the right position. (Fill in the serial number of the correct answer in brackets) (2 points for each question, ***8 points)

1, the quotient of dividing two numbers is 0.28. If both the dividend and the divisor are reduced to 1%, the quotient is ().

A 0.28 B 0.0028 C 2.8 D 28

2, 6.399 accurate to the percentile is about ().

A 6.39 B 6.4 C 6.40 D 6.400

3. On 8.24? In 1.2, if the decimal points of dividend and divisor are removed, then the quotient ().

A remains unchanged, b enlarges 10 times, c reduces 10 times, and d cannot be determined.

4, the following calculation is correct ().

A 0.06? 0.02=0.03 B 24.8？ 0.04=248? 4=62

C 9.8？ 2.5=(9.8? 4)? (2.5? 4)=3.92 D 5.6？ 0.8? 5.6? 0.8= 1

5. Small expert in calculation. (***27 points)

1, vertical calculation (the last two small questions need to be checked). (3 points for each question, *** 15 points)

23 1? 66= 8.5? 17= 5.6? 0. 14=

2.47? 4.5= 10 1.4? 7.8=

2. Off-mold calculation can be simplified. (3 points for each question, *** 12 points)

3.5? 3.6+ 1.4? 3.5 1.75? 0.25? 0.4

1.75? 0.25? 0.4 54? (3.94+6.86)? 0.8

Sixth, solve the problem. (5 points for each question, ***25 points)

48 students from 1 class and 4 1 class donated 393.60 yuan to Hope Primary School. How much did each student donate on average?

These two books are the same paper. How many pages are there in the second book?

Uncle Wang went to the factory to buy vegetable oil. Vegetable oil is 7.80 yuan per kilogram, and Uncle Wang only brought 200 yuan money.

(1) How many Jin of vegetable oil can Uncle Wang buy back? (The result is reserved to two decimal places)

(2) If each oil drum can hold up to 4.5 kilograms of oil, how many such oil drums should Uncle Wang bring?

4.65,438+0 yuan dollars is equivalent to RMB 65,438+0.07 yuan; Euro 1 equivalent to RMB 9. 15. (The result is reserved to two decimal places)

5. Dad bought a batch of glass cups from the manufacturer, and the price of each cup was 4.8 yuan, which cost 8 16 yuan. 14 The cup was broken on the way to the supermarket. Dad is going to sell 5 yuan per cup. How much can he earn by selling these cups?

Volume II Outward Bound Training (5 points for each question, 20 points for * * *)

1, there are () triangles on the right.

Find a rule to fill numbers.

7, 1 1, 19,35,67,( ),( )。

3、 1? 7=0. 142857 142857, the 50th place after the decimal point is (), and the 2006th place is ().