The Shenzhou World Window covers an area of ??about 48 hectares. How many Abyss World Window covers an area of ??about one square kilometer?

The two Shenzhen Window to the World cover an area of ??approximately 1 square kilometer.

Answer:

1 square kilometer = 100 hectares

100÷48≈2 (units)

Answer: 2 Shenzhen Window of the World covers an area of ??approximately 1 square kilometer.

This question examines the conversion of area units and the use of "rounding".

If the number of high-level units is converted into the number of low-level units, multiply the progress rate between units; if the number of low-level units is converted into the number of high-level units, divide by the rate between units progress rate.

Analysis

1 square kilometer = 100 hectares. First convert the number of square kilometers into the number of hectares, and then answer it according to the meaning including division.

Extended information:

1. The conversion relationship between common area units:?

1 square kilometer = 100 hectares

1 hectare = 10,000 square kilometers

1 square kilometer = 1,000,000 square meters

1 square meter = 100 square decimeters

1 square minute Meter = 100 square centimeters

1 square meter = 10,000 square centimeters

2. Tips for rounding:

1. The rounding method is good, and there are methods for approximate numbers. Find;

2. Find the next digit, and then compare it with 5 characters;

3. If 5 is greater than 5, advance 1, and if it is less than 5, discard all;

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4. Change the equal sign to an approximate equal sign so that people can understand it at a glance.