三四年級(jí)必看！2025袋鼠數(shù)學(xué)競賽B級(jí)真題！完整版PDF可下載！

　　2025袋鼠數(shù)學(xué)競賽B級(jí)完整版真題，25年袋鼠考試題型有哪些?袋鼠數(shù)學(xué)競賽多少分可以拿獎(jiǎng)?文末關(guān)注公眾號(hào)回復(fù)“111”領(lǐng)取袋鼠真題!

　　2025 袋鼠 MathKangroo Level B 真題解析

　　1.Mia is joining small cubes, adding one at a time, to build a 3×3×3 cube. She took pictures at 5 different moments. What does Mia's third picture look like? 小米正在用小立方體搭建一個(gè) 3×3×3 的大立方體，每次添加一塊小立方體。 她在五個(gè)不同的時(shí)刻拍下照片。 問小米拍的第三張照片是什么樣子?

　　2.Simona writes the four digits 2,0,2,5 in the four boxes. Which order would give her the largest result? 小西將 2、0、2、5 四個(gè)數(shù)字填入四個(gè)方框中。問哪種順序能讓她得到最大的 結(jié)果?

　　3.Which rope ties into a knot when the ends are pulled? 問下面哪根繩子在兩端拉緊時(shí)會(huì)打成結(jié)?

　　4.Alex stepped on some tracks on the ground. What is beneath her shoe? 小艾踩到了地上的一些印記。 問她鞋底的圖案是什么樣子?

　　5.On a normal dice, the total number of spots on two opposite faces is always 7. Which one of the dice shown could be a normal dice? 在一個(gè)標(biāo)準(zhǔn)的骰子上，相對(duì)的兩個(gè)面上的點(diǎn)數(shù)之和總是7。 問下面哪個(gè)骰子可能是一個(gè)標(biāo)準(zhǔn)的骰子?

　　6.Larissa spins her sail. Which of the sails below is hers? 小拉在旋轉(zhuǎn)她的風(fēng)車。問下面哪個(gè)風(fēng)車是她的?

　　8.Which pinwheel can Jorge build with these 3 rods? 問小豪可以用這 3 根小棒搭建出哪個(gè)風(fēng)車?

　　9.Nico and his little sister pay with shells and marbles in their playshop. Each shell has a value of 6 and each marble has a value of 1. Which of the following has a total value of 15? 小尼和妹妹在玩商店游戲時(shí)，用貝殼和彈珠來支付。 每個(gè)貝殼價(jià)值為 6，每個(gè)彈珠價(jià)值為 1。 問下列哪個(gè)選項(xiàng)的總價(jià)值是 15?

　　10.Anna, Bonnie and Caspar have some kangaroo cookies on their plates, as shown. 小安、小波和小卡的盤子里各有一些袋鼠餅干，如圖所示。

　　They then share the remaining 15 cookies on the tray so that everyone now has the same number of cookies on their plates. 接下來他們分享了托盤上剩余的 15 塊餅干，現(xiàn)在，每個(gè)人盤子里的餅干數(shù)量 相同。 How many more cookies does Bonnie get? 問小波又得到了多少塊餅干?

　　11.In the morning, 5 friends had identical fully-charged mobile phones. By the evening, Bob had spoken on the phone as much as Ann and Cristina together. Bob ran out of power. David had not used his phone at all. Which phone belonged to Edward? 早上，5 個(gè)朋友各自擁有一部充滿電且型號(hào)相同的手機(jī)。 到了晚上，小鮑的通話時(shí)間等于小安和小克通話時(shí)間的總和。 小鮑的手機(jī)沒電了，小戴沒有使用手機(jī)。問哪部手機(jī)是小愛的?

　　13.In the petting zoo, Renée feeds 6 sheep. She gives them a total of 210 grams of dry food for lunch. She gives the smallest sheep twice as much food as she gives to each of the others. How much does the smallest sheep get? 在寵物動(dòng)物園里，小芮給 6 只羊分發(fā)了 210 克干糧作為午餐。 最小的羊獲得的干糧是其他每只羊的兩倍。問最小的羊得到了多少克干糧?

　　14.Tom wishes to slice a pizza into 2 halves. He also wishes to have the same number of tomatoes on each half. It is possible for him to do this with two different cuts. Along which lines could he cut? 小湯想把一個(gè)披薩切成兩半。 他還希望每半個(gè)披薩上的番茄數(shù)量相同。 已知他可以通過兩種不同的切法來實(shí)現(xiàn)這一點(diǎn)，問他可以沿 著哪些線來切這個(gè)披薩呢?

　　15.Maria fills the circles with the numbers 1, 2, 3, 4, 5,6 and 7. The number in each of the lower circles is equal to the sum of the two numbers in the connected circles above it. What number is in the circle marked with ★? 小瑪在圓圈里填入數(shù)字 1、2、3、4、5、6 和 7。 圖片中位于下方的每個(gè)圓圈里的數(shù)字等于與它相連的上方兩個(gè)圓圈中的數(shù)字之 和。 問標(biāo)有★的圓圈里的數(shù)字是什么?

　　16.Bob makes a square from 4 rectangular pieces. 3 of the pieces he uses are shown. 鮑勃用 4 塊長方形碎片拼出了一個(gè)正方形。其中 3 塊碎片如圖所示。 Which of the following is the fourth piece he uses? 問下列哪個(gè)選項(xiàng)是他用的第四塊碎片?

　　17.6 ladybirds have 1, 2, 3, 4, 5 or 6 spots each. Marta took 4 photos of them in groups of 3. Each ladybird appeared the same number of times in the photos. 3 of the photos, along with the outline of the fourth photo, are shown here. How many spots do the three ladybirds in Marta's fourth photo have in total? 6 只瓢蟲身上的斑點(diǎn)數(shù)量分別為 1、2、3、4、5 或 6。小 瑪給它們拍攝了 4 張照片，每張照片里有 3 只瓢蟲。 每只瓢蟲在照片中出現(xiàn)的次數(shù)相同。 其中 3 張照片和第四張照片的輪廓如圖所示。 問在小瑪拍攝的第四張照片里，三只瓢蟲身上的斑點(diǎn)總數(shù)是多少?

　　18.Nela folds a paper square in half and then in half again, as shown. 小娜把一張正方形紙對(duì)折兩次，如圖所示。 Next she cuts pieces out of the folded paper' After unfolding she sees a paper snowfake. 接著，她從折好的紙上剪掉了幾塊。 展開后，她看到了一張紙雪花。 How did she cut the folded piece of paper? 問她是如何裁剪這張折好的紙的呢?

　　19.Leonia has built a pyramid using black and grey cubes. She arranges each cube so each face does not touch a face of another cube with the same colour. One of the black cubes is shown in the figure. What will Leonia's pyramid look like from above? 小莉用黑色和灰色的立方體搭建了一個(gè)金字塔。 她在擺放每個(gè)立方體時(shí)，都確保該立方體的每個(gè)面都不 與其他同色立方體的面接觸。 其中一個(gè)黑色立方體如圖所示。 問從上面看，小莉的金字塔是什么樣子的?

　　20.The picture shows the page for one month of a calendar, without any of the dates. 圖中展示了一個(gè)月的日歷頁，但沒有標(biāo)注日期。 The total of the dates for the 2 shaded days is 31. On what day of the week does the first day of the month fall? 已知兩個(gè)陰影處的日期之和是 31。 問這個(gè)月的第一天是星期幾?

　　21.The construction uses 1l identical bricks. The construction has length 100 cm and width 60 cm. What is the size of each brick? 如圖所示的建筑使用了 11 塊相同的磚。 已知該建筑的長度是 100cm，寬度是 60cm 問每塊磚的尺寸是多少?

　　22.Rossitza has written down the number of pieces of different fruit that she has. Unfortunately, some digits have been covered by paint. In total, she has 106 pieces of fruit. The number of pieces of two of the types of fruit she has are equal. She has twice as many of one type of fruit as she does of some other type. She has more than 10 pieces of each type of fruit. How many bananas does she have? 小羅寫下了她擁有的不同水果的數(shù)量。 不幸的是，一些數(shù)字被顏料遮住了。 已知她一共有 106 個(gè)水果。其中有兩種水果的數(shù)量相同。 有一種水果的數(shù)量是另一種的兩倍。 且每種水果的數(shù)量均超過 10 個(gè)。 問她有多少根香蕉?

　　23.Identical balls have been placed in 5 identical test tubes, as shown. Then, water is added to each of these test tubes. 5 個(gè)相同的試管中放入了相同規(guī)格的球，如圖所示。 接著，往每個(gè)試管中加水。 The water levels in test tubes 1, 2, and 3 are the same. The water levels in test tubes 4 and 5 are also the same and twice as high as in the first 3 test tubes. Then, all the balls are removed. Which test tube has the least water? 試管 1、2 和 3 的水位相同。試管 4 和 5 的水位也相同，且是前 3 個(gè)試管水位 的兩倍。然后，把所有的球取出來。問哪個(gè)試管里的水最少?

　　24.A pai of scales is sed to weigh 3 different objects, and the results me shown below. 用一對(duì)天平稱量 3 種不同的物體，結(jié)果如下圖所示。 Fach type of object has a different mass. The masses can be 1, 2, 3, 4, or 5 kg. What is the mass of one in kilograms? 每種物體的質(zhì)量不同，已知它們的質(zhì)量可能是 1、2、3、4 或 5 千克。 問一個(gè) 的質(zhì)量是多少千克?

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　　袋鼠數(shù)學(xué)競賽多少分可以拿獎(jiǎng)?

　　袋鼠數(shù)學(xué)評(píng)分標(biāo)準(zhǔn)

　　等級(jí)A-B：共24道選擇題，總分120分，起始分?jǐn)?shù)為24分。1-8題每題3分，9-16題每題4分，17-24題每題5分。答錯(cuò)扣1分，不答不扣分。

　　等級(jí)C-F：共30道選擇題，總分150分。1-10題每題3分，11-20題每題4分，21-30題每題5分。答錯(cuò)扣1分，不答不扣分。

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