Toán lớp 3 - Sách Kết nối tri thức - Đề kiểm tra 15 phút - Toán lớp 3 - Sách Kết nối tri thức - Tháng 1 - Số 2

{"save":1,"level":1,"time":"15","total":10,"point":5,"segment":[{"id":"10547","test_id":"709","question":"<p>S\u1ed1 nh\u1ecf nh\u1ea5t c&oacute; b\u1ed1n ch\u1eef s\u1ed1 kh&aacute;c nhau l&agrave;&nbsp;&lt;input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\" \/&gt;.<\/p><p>&nbsp;<\/p>","options":"","correct":["1023"],"answer":"<p>S\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u1ea7n l\u01b0\u1ee3t l&agrave; <span style=\"color:#16a085;\"><strong>1023<\/strong><\/span>.<\/p><p>S\u1ed1 nh\u1ecf nh\u1ea5t c&oacute; b\u1ed1n ch\u1eef s\u1ed1 kh&aacute;c nhau l&agrave;&nbsp;<span style=\"color:#16a085;\"><strong>1023<\/strong><\/span>.<\/p>","type":"blank","user_id":"131","test":"1","date":"2025-08-14 09:40:58"},{"id":"10551","test_id":"709","question":"<p>M\u1ed9t h&igrave;nh tam gi&aacute;c c&oacute; \u0111\u1ed9 d&agrave;i ba c\u1ea1nh l&agrave; 250 mm, 200 mm v&agrave; 220 mm. T&iacute;nh chu vi c\u1ee7a tam gi&aacute;c \u0111&oacute;.<\/p>","options":["<strong>A.<\/strong> 670 mm.","<strong>B.<\/strong> 680 mm.","<strong>C.<\/strong> 660 mm.","<strong>D.<\/strong> 690 mm."],"correct":"1","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>A.<\/strong> 670 mm.<\/span><\/p><p>Chu vi c\u1ee7a tam gi&aacute;c \u0111&oacute; l&agrave; 250 + 200 + 220 = 670 (mm).<\/p><p>\u0110&aacute;p s\u1ed1: 670 mm.<\/p>","type":"choose","user_id":"131","test":"0","date":"2025-08-14 09:57:40"}]}