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# The third grade primary school mathematics unit test questions

Public number: third grade of primary school Information source: Time: 2020-01-08 20:29:43

Millennium Tongzhou vitality north stream

Haruno Sakura

1. (1) 一个正方形的周长是12厘米, 它的面积是16平方厘米． I. Judgement Questions (4 points in total, 8 points in total) 1. (1) The circumference of a square is 12 cm, and its area is 16 cm 2. (2) 3平方米=30平方分米． () (2) 3 square meters = 30 square decimeters. 2. (1)边长是1米的正方形周长是4米, 面积是1平方米． () 2. (1) A square with a side length of 1 meter has a perimeter of 4 meters and an area of 1 square meter. (2)周长相等的两个长方形, 它们的面积也相等． () (2) Two rectangles with the same perimeter have the same area. 二、 填空题(1-5每题2分, 6-8每题4分, 第9小题6分, 共28分) 1. 一个四边形, 四条边长度的总和叫做( )． () 2. Fill in the blanks (2 points for each question 1-5, 4 points for each question 6-8, 6 points for the 9th question, a total of 28 points) 1. A quadrilateral, the sum of the length of the four sides is called (). 3. 正方形面积的计算公式是( ), 周长的计算公式是( )． 2. The size of the surface of the object or the enclosed plane figure is called their () 3. The calculation formula of the square area is (), and the calculation formula of the perimeter is (). 4. The side length is a square of 1 cm, and the circumference is (). 5. The side length is a square of 1 cm, and the area is (). 6. (1) Xiaohong's height is 142 (). (2) The classroom is 8 () long, 6 () wide, and the area is 48 (). 4平方米=( )平方分米 30米=( )分米=( )厘米 30平方米=( )平方分米 8. 8分米=( )厘米 8平方分米=( )平方厘米 4米=( )厘米 4平方米=( )平方分米 9. 填上合适的单位名称． 7. 4 meters = () decimeters 4 square meters = () decimeters 30 meters = () decimeters = () centimeters 30 square meters = () decimeters 8.8 decimeters = () centimeters 8 square centimeters Meter = () square centimeter 4 meters = () cm 4 square meters = () square decimeter 9. Fill in the appropriate unit name. (1) The length of the double bed is 2 (). (2) A pencil is 2 () long. (3) The area of the blackboard is 3 (). 1. 350÷50= 12×40= 450－300= 560+80= 2. 7×70= 82－56= 560÷4= 28+37= 3. 26×3= 88÷22= 160×5= 640÷8= 四、 应用题(1-2每题6分, 3-6每题7分, 共40分) 1. 一间房子长12米, 宽6米, 用面积9平方分米的方砖铺满地面, 共需这样的方砖多少块? 2. 小华有一张边长4分米的手工纸, 小伟的一张正方形手工纸边长比小华的短12厘米, 小华的手工纸比小伟的大多少平方厘米? 3. 一个长方形菜地, 宽27米, 比长少17米, 这块长方形菜地的周长和面积各是多少? 4. 用一根铁丝围成一个长方形, 长48厘米, 宽24厘米, 如果把这根铁丝重新围成一个正方形, 它的面积是多少? 5. 一个正方形和一个长方形的周长相等, 长方形长24米, 宽16米, 它们的面积各是多少? 6. 有两个正方形, 第一个正方形的面积是121平方米, 第二个正方形的边长等于第一个正方形边长的5倍, 求第二个正方形的面积 3. Oral calculation (8 points in total for each sub-question, 24 points in total) 1. 350 ÷ 50 = 12 × 40 = 450－300 = 560 + 80 = 2. 7 × 70 = 82－56 = 560 ÷ 4 = 28 + 37 = 3. 26 × 3 = 88 ÷ 22 = 160 × 5 = 640 ÷ 8 = IV. Applied questions (6 points for each question 1-2, 7 points for each question 3-6, a total of 40 points) 1. A house length 12 meters, 6 meters wide, covering the ground with 9 square decimeters of square tiles. How many such square tiles are needed? 2. Xiaohua has a piece of handmade paper with a length of 4 decimeters, and Xiaowei has a square. The length of the handmade paper is 12 cm shorter than that of Xiaohua. How many square centimeters is the size of Xiaohua's handmade paper? 3. A rectangular vegetable field, 27 meters wide, 17 meters less than its length. What is the length and area? 4. Use a wire to form a rectangle, 48 cm in length and 24 cm in width. If this wire is re-enclosed into a square, what is its area? 5. A square and a rectangle The perimeters are equal. The rectangles are 24 meters long and 16 meters wide. What are their areas? 6. There are two squares. The area of the first square is 121 square meters. The side length of the second square is equal to the first. 5 times the side of the square, find the area of the second square

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