6th grade scale, 6th grade math scale

12mm:24cm=:24cm=1:20

180km/200000=

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1) Because the length of a machine part is 12mm, the length drawn on the drawing is 24cm. The ratio is 12:240, simplified, and divided by 12 to get 1:20

A: The scale is 1:20

2) Because the scale is 1:5000000 on the map of China, the distance between the two ports is measured. Then the length of the two ports: , then the length is converted to kilometers: 19000000 100000=190 (kilometers).

A: The actual distance between the two ports is about 190 kilometers.

3) Because 180km = 180000m, and the scale is 1:200000 on the map, it should be drawn as 180000 200000 = m) = 90 (cm).

A: 90 cm should be drawn.

1.Distance on the figure: actual distance = 24cm: 12mm =

2.3. 180/200000=90cm

12mm:24cm=:24cm=1:20

180km/200000=

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Distance on the graph = actual distance * scale.

Actual distance = distance on the graph scale.

What do you think! With the formula, it's so much easier! Listen well in class! Don't do your homework this way!

Centimeter = 240 mm.

Distance on the graph: actual distance = 240:12 = 20:18*5000000 100000=190 (km)*100000 200000=90 (cm).

The contents of the sixth grade mathematics scale stool with ruler are as follows:

1. The scale bar is the ratio of the length of a line segment on the diagram to the actual length of the corresponding line segment on the ground.

2. The scale formula is: scale bar = the ratio of the distance on the graph to the actual distance. There are three ways to represent loose and coarse: numerical scale, pictorial scale, and text scale.

3. The content of the large-scale map is detailed and the geometric accuracy is high, which can be used for measurement on the map. The content of small-scale maps is highly generalized, and it is not suitable for measurement on the map.

Summary. Hello! Dear, we know the distance on the map and the scale to calculate the actual distance, with the distance on the map scale, that is, 16 1 100 = 1600cm, 20 1 100 = 2000cm area = 1 2 2 bottom height = 1 2 1600 2000 = 1600000 square centimeters = square meters, <>

In the sixth grade of primary school, use a scale to solve problems.

Hello! We know that the distance on the map and the scale bar calculate the actual distance, using the distance on the map scale, that is, 16 1 100 = 1600cm, 20 1 100 = 2000cm area = 1 2 bottom height = 1 2 1600 2000 = 1600000 square centimeters = flat lead square mu excitation meters, <>

Your last 1,600,000 square centimeters are wrong.

It should be 160 square meters.

The advance rate of square centimeters and square meters is, ten thousand, <>

It's wrong, pro, it should be, friendly 1600000 square centimeters Huai Xing = 1600000 10000 = 160 square meters, pro, I'm sorry to think about it? Pro-<>

1 All (1) 40000000 cm = 400 km, he said that 1 cm on the map represents the actual distance of 400 km, draw a line segment on the map, you can draw 3 cm long, then each cm represents 400 km, (2) 1800 km = 180000000 cm, 3 cm: 180000000 cm = 1: 600000000, (3) 120 km = 12000000 cm, scale:

3: 12000000=1:4000000, the line segment scale is the same as the first question, (4) one centimeter on the figure represents the actual distance of 5 kilometers, 5 kilometers = 500,000 centimeters, numerical scale:

1:500000, actual distance = distance on the map Scale, : 500000) = 2100000 cm = 21 km, (5):

2000000) = 5000000 cm = 50 km.