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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 5: 1×199+2×198+…+98×102+99×101 nhanhhhhhhhhhhhhh

Toán Lớp 5: 1×199+2×198+…+98×102+99×101 nhanhhhhhhhhhhhhh

Comments ( 2 )

  1. 1×199+2 x 198+….+98 x 102+99 x 101=20590.
     Chúc bạn học tốt !!!!!

  2. đáp án: 1 x 199 + 2 x 198 +  ….. + 98 x 102 + 99 x 101 = 20590
     

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222-9+11+12:2*14+14 = ? ( )

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