Preface to the final exam of the fourth grade of primary school mathematics: Do your best, face it easily and show yourself in 70 minutes! 1. Fill in the numbers of (20 points) 1.5 and 30 carefully, where () is a multiple of () and () is a factor of (). The factor of 24 is (). 2. 1, 2, 28, 3 1, 57, 86 can you fill in the circle below? Fill it out. Odd prime number composite number 3. As shown on the right, one corner of a triangular piece of paper has been torn off. This angle is () degrees. It turns out that the shape of this paper is a () triangle, and it is also a () triangle. 4. Fill in "liter" or "milliliter" in brackets. ① A bottle of coconut milk is about 240 (). ② An electric water heater can hold 60 () water. 5. The sum of the lengths of the upper and lower bottoms of the right-angled trapezoid is () cm, and the height is () cm. 6. Tick "×" or "∫" in the box and fill in the number. 156 ÷12 = (156× 3) ÷ (12) = (156 ÷ 3) ÷ (1) Jia Xiaohong 000 Supermarket. A rectangular piece of paper, length 1 cm, width 2 cm. Cut the largest square from this paper. The circumference of this square is () cm and the area is () cm 2. When a = 15 and b = 10, the circumference of the original rectangular paper is () cm and the area is () cm 2. 2. Correct judgment (4 points) (mark "√" for the right and "×" for the wrong)1.18× 500, and there are two zeros at the end of the product. ............................ () 2. The trapezoid can't be an axisymmetric figure. ............................. () 3. (12+k) × 5 = 60+5k ................................. () 4. The greater the natural number, the more factors it has. ………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………… …………………………………………………………………………………… 1 232. Pour1liter of water into a paper cup with a capacity of 200 ml, and you can pour () cups. 1 1 253 2003. The little monkey wants to fence a piece of land, and the enclosure method of () is stronger. ① ② ③ 4. One multiplier of A× B is multiplied by 10, and the other multiplier is also multiplied by 10, and the product is equal to (). ① original product times 100② original product times 20③ original product times104. Calculate carefully (***35 points) 1. Write the number directly. (8 points)12× 300 = 200× 34 = 50×10 = 800× 0 = 600× 50 = 400× 50 = 26× 30 =150× 40. (9 points) 28 × 307 = 760 × 50 = 400 ÷ 30 = 3. Calculate the following questions. If it is easy to calculate, use a simple method. (18) 60 ÷15+15× 60206× (39 ÷13× 4)125× 54—46×/kloc. ② Rotate the trapezoid 90 clockwise around point A to draw the rotated figure. Solving intransitive verbs (6 points for each question, ***24 points) 1.2.3. The number of gold medals won by the China delegation in the Asian Games topped the list for seven consecutive years. The following is a statistical chart of the gold medals won by the China delegation at the 7th-15th Asian Games. The delegation of China won the gold medal in the 7th-15th session. Unit: Block 2007 1 month 200180140120100806040200 ① As can be seen from the above figure, the price of tomatoes is the highest in () month. ① The number of gold medals won by the China delegation in the 5th Doha Asian Games was 15 more than that in the 4th Asian Games. Complete the statistical chart above. ② The China delegation won the most gold medals in () Asian Games, while () won the least gold medals. ③ The number of gold medals rose fastest from () to (), and fell fastest from () to (). What do you think after reading this statistical chart? 3 pairs of China Chess14 pairs of 2 yuan Weiqi? RMB 4 yuan. I bought China Chess and Go for 96 yuan. How much is the average price of each pair of Go? Seven, explore the law (5 points) first count, then fill in the blanks, what laws can you find? The number of triangles is 123456… the number of sticks is 35 … ① How many sticks does it take to put 20 such triangles? ② There are 59 branches. How many triangular poses can you pose? The national standard Su Jiaoban primary school fourth grade mathematics Volume II final exam questions reference answer 1. Fill in 1 .30,5,30,1,2,3,4,6,8,12,242 carefully. Odd numbers: 1, 3 1. Isosceles 4. ① ml ② rises by 5.17,96 .× 3, ÷ 37.68.4b, b, 50, 150 II. Accurately judge 1.× 2.× 3. √ 4.× 3. Choose 65438 carefully. 60002.8596,38000,13 ...103.904,2472,1000,30,20000,9900 V. Drawing volume 1.2. On the bottom (23 or 24), 5② is slightly six, and the problem is solved 1.480km 2.36 Yuan 3. ① Omit ② 1 1, 7③ 10,1,1 1 2④ Omit 4. 15 yuan 7. Explore the law, and fill in the form: ①4 1 ②59. Because the picture can't be displayed, it is suggested to draw the drawing topic yourself.