Name: _ _ _ _ _ _ _
Score: _ _ _ _ _ _ _ _ _ _ _
I. Fill in the blanks (34 points)
1. The side length is (
The area of one square meter is 1 hectare, and the area of a square with a side length of 1 kilometer is (
)。
2. In (
) Fill in the appropriate area units.
(1) The area of Shanghai is about 6340 (
)
The area of this football field is about
7000(
)
(3) Beijing Tiantan Park covers an area of about 273 (
)
(4) Diaoyu Island in China covers an area of about 4 (
)
3. In (
) Fill in the appropriate numbers.
(1) A rectangular vegetable garden, covering an area of 100 square meter.
) The area of this vegetable garden is 1 hectare.
(2) An orchard covers an area of about 5 hectares, (
) The orchard area is about 1 km2.
(3) The sports ground covers an area of about 2,000 square meters.
), covering an area of about 1 km2.
4. At (
) Fill in the appropriate numbers.
( 1)
12 hectare = (
) square meters
(2) 80,000 hectares = (
) square kilometers
(3)
5000000 square meters = (
) hectares = (
) square kilometers
5. put ">"
(1)5 hectares ○ 1 km2
(2)40 1 hectare ○400 square kilometers
(3)6 hectares and 600 square meters
(4)2 square kilometers ○2000 hectares
Second, choose
(20 points)
1. The area of the Macao Special Administrative Region is about 33 (
)。
A
Hectare
B
square kilometer
C
square meter
2. The ratio of square meters to hectares is (
)。
A
10000
B
100
C
1000000
The area of a nursery is 8 hectares. Its length is 4000 meters and its width is (
) meters.
A
20
B
2
C
2000
4. The school playground is 200 meters long, 100 meters wide and covers an area of (
)。
A
200 hectares
B
2 square kilometers
C
Twenty thousand square meters
5. If 1 m2 can hold 9 pots of flowers, 1 hectare can hold (
) potted flowers; 1 km2 pendulum (
) potted flowers.
A
900
0000
B
900
C
90000
Iii. Answers (No.65438 +0-4 sub-question scored 9 points each, and sub-question No.5 10)
1. The circumference of a square orchard is1200m. How many square meters is this orchard? How many hectares?
2. A helicopter sprayed drugs over a rectangular forest (pictured). How many square kilometers is this forest? How many hectares?
3. Build a highway with a length of 25 kilometers and a width of 40 meters. How many hectares is this highway? How many square kilometers?
A rectangular cornfield, 600 meters long and 300 meters wide. If the average yield of corn per hectare is 10 ton, how many tons of corn can this corn field receive?
5. There is a square vegetable field with an area of 1 hectare. If its two sides are extended by 100 m, how many hectares will the vegetable area increase?