Toán lớp 5 - Đề kiểm tra 15 phút - Toán lớp 5 - Tháng 11 - Số 3

{"save":1,"level":1,"time":"15","total":10,"point":5,"segment":[{"id":"733","test_id":"258","question":"<p>S\u1ed1 th\u1eadp ph&acirc;n <strong>18,006<\/strong> \u0111\u01b0\u1ee3c vi\u1ebft th&agrave;nh h\u1ed7n s\u1ed1 n&agrave;o?<br \/>&nbsp; &nbsp;<\/p>","options":["A. <span class=\"math-tex\">$18\\dfrac{6}{1000} \u00a0\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0$<\/span>","B.&nbsp;<span class=\"math-tex\">$ 18\\dfrac{6}{100}$<\/span>","C.&nbsp;<span class=\"math-tex\">$18\\dfrac{6}{10}$<\/span>","D.&nbsp;<span class=\"math-tex\">$18\\dfrac{6}{10000}\u00a0$<\/span>"],"correct":"1","answer":"<p>Ta c&oacute;:<\/p><p><span class=\"math-tex\">$\\begin{align}\\n\u00a0 & 18,006\\text{ }=\\text{ }18\\text{ }+\\text{ }0,006 \\\\\u00a0\\n\u00a0& \\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,=18\\,\\,\\,\\,\\,+\\dfrac{6}{1000} \\\\\u00a0\\n\u00a0& \\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,=18\\dfrac{6}{1000} \\\\\u00a0\\n\\end{align}$<\/span><\/p><p>V\u1eady \u0111&aacute;p &aacute;n \u0111&uacute;ng l&agrave; <strong>A<\/strong><\/p>","type":"choose","user_id":"54","test":"2","date":"2020-03-24 13:11:10"},{"id":"734","test_id":"258","question":"<p>M\u1ed9t khu r\u1eebng h&igrave;nh ch\u1eef nh\u1eadt c&oacute; chi\u1ec1u d&agrave;i 3,5km; chi\u1ec1u r\u1ed9ng b\u1eb1ng <span class=\"math-tex\">$\\dfrac{4}{7}$<\/span> chi\u1ec1u d&agrave;i. T&iacute;nh di\u1ec7n t&iacute;ch khu r\u1eebng \u0111&oacute; theo \u0111\u01a1n v\u1ecb h&eacute;c &ndash; ta?<\/p>","options":["A. 70ha","B. 700ha","C. 7000ha","D. 70000ha"],"correct":"2","answer":"<p>\u0110\u1ed5i<strong> 3,5km = 35hm<\/strong><br \/>Chi\u1ec1u r\u1ed9ng h&igrave;nh ch\u1eef nh\u1eadt l&agrave;:<\/p><p><span class=\"math-tex\">$35\\times \\dfrac{4}{7}=20\\,\\,(hm)$<\/span><\/p><p>Di\u1ec7n t&iacute;ch khu r\u1eebng l&agrave;:<\/p><p><span class=\"math-tex\">$35 \u00d7 20 = 700 ((h{{m}^{2}})=700ha$<\/span><\/p><p>V\u1eady \u0111&aacute;p &aacute;n \u0111&uacute;ng l&agrave; <strong>B<\/strong><\/p>","type":"choose","user_id":"54","test":"0","date":"2020-03-24 13:13:05"}]}