8 - 1 x 0 + 2 : 2 = 7 x 0 + 2 : 2 = 0 + 1 = 1
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8 - 1 x 0 + 2 : 2 = 7 x 0 + 2 : 2 = 0 + 1 = 1
1+2+3+4+5+6+7+8+9+1+2+3+4+5+6+7+8+9+0+0+0+3+4+1+2+3+111+44+99
1+2+3+4+5+6+7+8+9+0+0+0+0+0+0+9+8+7+6+5+34+2+3+5=.........
1+1+2+2+3+3+4+4+5+5+6+6+7+7+8+8+9+9+0+0+=?
Tính nhẩm
8 x 3 =
8 x 2 =
8 x 4 =
8 x 1 =
8 x 5 =
8 x 6 =
8 x 7 =
0 x 8 =
8 x 8 =
8 x 10 =
8 x 9 =
8 x 0 =
9-8+7-6+5-4+3-2+1-0-5+0-5+0-0+5-0
Tính nhẩm
8 x 1 =
8 x 5 =
8 x 0 =
8 x 8 =
8 x 2 =
8 x 4 =
8 x 6 =
8 x 9 =
8 x 3 =
8 x 7 =
8 x 10 =
(1+2+3+4+5+6+7+8+9+1+.....+100)nhân 0=?
1+2+3+4+5+6+7+8+9+0=?
9-8+7-6+5-4+3-2+1-0