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      <title>Toán_Khối 5 Harmony by Khối 5</title>
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      <pubDate>2024-08-23 10:43:37 UTC</pubDate>
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         <title>1.1. GIÁ TRỊ THEO HÀNG</title>
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         <pubDate>2024-10-11 04:23:21 UTC</pubDate>
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         <title>1.2. LÀM TRÒN SỐ THẬP PHÂN</title>
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         <pubDate>2024-10-11 04:26:49 UTC</pubDate>
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         <title>4.2. TỈ SỐ PHẦN TRĂM</title>
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         <pubDate>2024-10-11 08:58:50 UTC</pubDate>
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         <title>SỐ NGUYÊN DƯƠNG VÀ SỐ NGUYÊN ÂM</title>
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         <pubDate>2024-10-11 11:12:59 UTC</pubDate>
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         <title>2.3. BỘI CHUNG VÀ ƯỚC CHUNG</title>
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         <pubDate>2024-10-11 11:56:39 UTC</pubDate>
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         <title>4.1. HIỂU VỀ PHÂN SỐ</title>
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         <pubDate>2024-10-11 12:43:04 UTC</pubDate>
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         <title>2.1. PHÉP ĐẾM VÀ DÃY SỐ</title>
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         <pubDate>2024-10-11 12:55:10 UTC</pubDate>
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         <title></title>
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         <pubDate>2024-10-11 12:55:33 UTC</pubDate>
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         <title>5.1. PHÉP CỘNG VÀ TRỪ SỐ THẬP PHÂN</title>
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         <pubDate>2025-10-13 07:19:29 UTC</pubDate>
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         <title>5.2. PHÉP CỘNG VÀ TRỪ PHÂN SỐ</title>
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         <title>6.1. HÌNH TỨ GIÁC</title>
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         <pubDate>2025-10-13 07:22:34 UTC</pubDate>
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         <title>6.2. ĐƯỜNG TRÒN</title>
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         <pubDate>2025-10-13 07:22:56 UTC</pubDate>
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         <title>6.3. PHÉP ĐỐI XỨNG QUAY</title>
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         <pubDate>2025-10-13 07:23:40 UTC</pubDate>
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         <title>7.1. DIỆN TÍCH TAM GIÁC</title>
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         <pubDate>2025-10-13 07:25:17 UTC</pubDate>
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         <title>7.2. THỜI GIAN</title>
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         <pubDate>2025-10-13 07:25:43 UTC</pubDate>
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         <title>8.1 CÁC GIÁ TRỊ TRUNG BÌNH</title>
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         <pubDate>2025-10-13 07:26:43 UTC</pubDate>
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         <title></title>
         <author>2425khoi5</author>
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         <pubDate>2026-03-06 02:47:32 UTC</pubDate>
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         <title>11.1 Phép nhân</title>
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         <pubDate>2026-03-06 02:51:19 UTC</pubDate>
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         <title>11.2. Phép chia</title>
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         <pubDate>2026-03-06 02:55:02 UTC</pubDate>
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         <title>11.3 Dấu hiệu chia hết</title>
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         <pubDate>2026-03-06 02:55:28 UTC</pubDate>
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         <title>12.1. Tỉ số </title>
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         <pubDate>2026-03-06 02:55:57 UTC</pubDate>
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         <title>12.2. Tỉ lệ thuận</title>
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         <pubDate>2026-03-06 02:56:30 UTC</pubDate>
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         <title>13.1. Phép nhân, chia phân số</title>
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         <pubDate>2026-03-06 03:00:31 UTC</pubDate>
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         <title>13.2. Phép nhân số thập phân</title>
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         <pubDate>2026-03-06 03:01:01 UTC</pubDate>
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         <title>13.3. Phép chia số thập phân</title>
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         <pubDate>2026-03-06 03:01:24 UTC</pubDate>
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         <title>14.1. Các tính chất số học</title>
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         <pubDate>2026-03-06 03:02:45 UTC</pubDate>
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         <title>15.1. Hình khối và hình trải phẳng</title>
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         <pubDate>2026-03-06 03:05:30 UTC</pubDate>
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         <title>15.2. Dung tích và thể tích</title>
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         <pubDate>2026-03-06 03:10:58 UTC</pubDate>
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         <title>16.1. Vẽ và đo góc</title>
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         <pubDate>2026-03-06 03:17:42 UTC</pubDate>
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         <title>Tọa độ và phép tịnh tiến</title>
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         <pubDate>2026-04-10 08:16:41 UTC</pubDate>
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         <title>Phép đối xứng</title>
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         <pubDate>2026-04-10 08:17:03 UTC</pubDate>
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         <title>Phép quay</title>
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         <pubDate>2026-04-10 08:17:19 UTC</pubDate>
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         <title>16.2. Góc trong tam giác</title>
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         <pubDate>2026-04-11 03:04:11 UTC</pubDate>
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