1. Write directly. (10)
24÷6= 36÷9= 9×8= 5×7=
15÷2= 78÷9= 27÷4= 36÷6=
73÷8= 54÷7= 39+5= 35÷5=
32÷4= 8×8= 28÷7= 46÷8=
63÷7= 37+45= 100-37= 4×8=
2. Use hard calculation. (12)
42÷6= 57÷8= 36÷4=
62÷8= 73÷8= 25÷6=
3. calculation. (12)
24÷(52-48) 50-6×4 28÷4×9
64+8×3 45-5×4 7×9-45
2. Fill it in. (2 points for 2 questions+1×26=28 points)
1. () Ten is 100, () One hundred is 1000 and 10 () is 10000.
2. Use the following five numbers as ""
1070 880 1200 308 8057 58 1700
3.5702 consists of () thousand () hundred () ten and () one, which is pronounced as ().
4.5200 has () hundred, and 4000 has () ten.
5. Fill in "
7 meters () 6 meters 10 cm 30 cm () 3 decimeters
102 1( ) 1009 54 12( )2067
6. Fill in the appropriate number in ().
5cm=( )mm 5km=( )m 80dm=( )m
40m=( )cm 8000cm=( )m 9dm =( )cm
7. Fill in the appropriate units in ().
The thickness of the dictionary is 30 (). The height of light light blue is 1( )40 ().
The 18 () plane of a building flies 900 () per hour.
8. It takes 7 pieces of paper to make a kite, and 60 pieces of paper can make () kites at most.
9. Transport 30 bags of sand, and the car can transport at most 7 bags at a time, at least () times.
Draw a picture and measure it. (5 points)
1. Measure it. (0.5×7=3.50
2. Draw a picture and draw a line segment with a length of 4cm7mm. (1.5 points)
4. Accept the evaluation. Select the price of washing machine with "○". (2 points)
1824 yuan is much cheaper than the refrigerator.
520 yuan 1400 yuan 22 15 yuan
5. Bus routes. (1× 16= 16 point)
Jia Xiaohua, the school gymnasium.
Hospital cinema
Science and technology museum post office
Jia Xiaoming plaza food market shopping mall
1. Start from Xiaoming's house, drive to (), stop at the mall, and then go to ().
Drive () to the cinema, then () to the food market, and then () to Xiaohua's house.
2. Starting from school, drive to () and stop at the square, then drive to () and stop at the gym, and then drive to () and stop at Xiaohua's house.
Xiaohua set out from home and took three stops. He may get off at () or ().
Sixth, the application problem. (3×3+6= 15 points)
1. There are 9 balls in each box. Divide 4 boxes of balls into 6 categories. How many balls are distributed in each class?
2. 4 yuan weight of apple 1 kg. Mother bought 7 Jin of apples and paid them to 50 yuan, a salesgirl. How much should I get back?
3. There are 1 adult tickets for 9 yuan and 1 child tickets for 4 yuan. Xiaoming bought two adult tickets and 1 child tickets. How much is a ticket?
Is it okay?
Look at the answer.
The answer is that the cosine of the vector PA and the normal vector N =√2/4, and the normal vector