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【題目】從“18,27,3,9,6”中選出幾個數(shù),組成一道乘法算式和一道除法算式。
(______)×(______)=(______)
(______)÷(______)=(______)
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【題目】某小學(xué)對三年級三個班的男女同學(xué)經(jīng)常上網(wǎng)的人數(shù)進行了統(tǒng)計,情況如下表:
(1)三(2)班經(jīng)常上網(wǎng)的有________人。
(2)三________班經(jīng)常上網(wǎng)的男生最多,三________班經(jīng)常上網(wǎng)的女生最少。
(3)這所小學(xué)三年級一共有________名同學(xué)經(jīng)常上網(wǎng)。
(4)網(wǎng)絡(luò)世界很精彩,他給我們帶來了很多方便,但如果運用不當(dāng),會給我們的生活和學(xué)習(xí)帶來不良影響,你能給同學(xué)們提出有益的建議嗎?請寫出來。
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【題目】在下面的點子圖中畫一個三角形,使它既是直角三角形,又是等腰三角形。
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【題目】下面這些現(xiàn)象哪些是“平移”現(xiàn)象,哪些是“旋轉(zhuǎn)”現(xiàn)象。
(1)風(fēng)力發(fā)電站里風(fēng)輪的運動是________現(xiàn)象。
(2)電腦鍵盤按鍵的按下與彈起是________現(xiàn)象。
(3)放風(fēng)箏時風(fēng)箏線越放越長,風(fēng)箏越飛越高是_______現(xiàn)象。
(4)游樂場里小朋友在蕩秋千是________現(xiàn)象。
(5)圖1中的鑰匙在開門時是________現(xiàn)象。
(6)圖2中的水龍頭在開關(guān)時是________現(xiàn)象。
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