Ask some math questions for the second semester of the sixth grade 1. The length of a rectangular vegetable field is 20 meters, and the ratio of length to width is 5:2. What is the area of this vegetable field? 2.2:1 = 28: () 8.4:6 = (): 5 one third: one fifth = 5: () 1.5:3 = () 3.4 48:（ ）=3.6:9 8:2=24：（ ） ( )：16=2.7:0.9 3. The length of the screws on the spectacle frame is 5mm. The ratio of the length drawn on the drawing to the actual length is 20:1. What is the length of the screws drawn on the drawing? 4. Li Qiang scaled down a picture of 27cm in length and 18cm in width on the computer. After the reduction, the width of the picture is 4cm. How long should it be? 5. the height of the Oriental Pearl Tower is 468M. The craft factory produces its model according to the ratio of one to three hundred. How many centimeters is the height of the model? 6. In the clay sculpture class, the art teacher made a full-length statue of Li Hua according to the ratio of 1:20. The statue is 7.5cm high. How tall is Li Hua actually? One point is a lot

Ask some math questions for the second semester of the sixth grade 1. The length of a rectangular vegetable field is 20 meters, and the ratio of length to width is 5:2. What is the area of this vegetable field? 2.2:1 = 28: () 8.4:6 = (): 5 one third: one fifth = 5: () 1.5:3 = () 3.4 48:（ ）=3.6:9 8:2=24：（ ） ( )：16=2.7:0.9 3. The length of the screws on the spectacle frame is 5mm. The ratio of the length drawn on the drawing to the actual length is 20:1. What is the length of the screws drawn on the drawing? 4. Li Qiang scaled down a picture of 27cm in length and 18cm in width on the computer. After the reduction, the width of the picture is 4cm. How long should it be? 5. the height of the Oriental Pearl Tower is 468M. The craft factory produces its model according to the ratio of one to three hundred. How many centimeters is the height of the model? 6. In the clay sculpture class, the art teacher made a full-length statue of Li Hua according to the ratio of 1:20. The statue is 7.5cm high. How tall is Li Hua actually? One point is a lot

1.20 * 2 / 5 = 8m 8 * 20 = 160m2
2 .14 7 3 1.7 120 6 48
3.5 * 20 = 100 mm
4.18:4 = 9:227 * 2 / 9 = 6cm
468 M = 46800 cm 46800 * 1 / 300 = 156 cm
6.7.5 * 20 = 150 cm = 1.5 m
Please give me some points

It's better to add, subtract, multiply and divide instead of equations,
A pile of oranges is transported in four times. Half of the oranges are transported in the first time, half of the oranges are transported in the second time, the remaining half are transported in the third time, and 300 kg are transported in the fourth time. How many kg are there in this pile of oranges?

After the orange is transported, since the fourth time is 300 kg, the third time and the fourth time should be the same amount of 300 kg. The second time, the third time and the fourth time did not happen. That is to say, after the transportation, there are still three times and four times and 600 kg of oranges left. The rest is 600 kg, so half of them are the same weight, that is 60

Two 10, two 4, add, subtract, multiply and divide randomly, the result must be equal to 24. Note, each number can only be used once!

(10*10-4)/4=24
Thank you