This is easy. All you need to know is your 11 times table. 11 times 11 equals 121
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121 ×1
99
119 + 121
1 x 484, 2 x 242, 4 x 121, 11 x 44, 22 x 22.
To calculate 121 x 11, you can use the distributive property of multiplication over addition. First, multiply 121 by 10 to get 1210. Then, multiply 121 by 1 to get 121. Finally, add these two results together to get the final answer of 1331.