230 + 230 + 230 + 230 = A. 8120 B. 830 C. 232 D. 230 E. 226 The expression above could be rewritten as: 4 x 230 4 can also be written as 22. What is 22 x 230? You should remember this basic rule: ( x m ) ( x n ) = x( m + n [...]
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