1) 55 =..... a) 5-5-5-5-5 b) 5x5x5x5x5 c) 5+5+5+5+5 d) 5:5:5:5:5:5 2) 2x =64 =2x2x2x2x2x2 = 26 =..... a) 8 b) 6 c) 10 d) 23 3) (74)3 =..... a) (7x7)x(7x7)x(7x7)x(7x7) b) 78 c) 89 d) 74 4) 85 =..... a) 8x8x8x8x8 b) 8x8x8x8x8x8x8x8x8x8 c) 5x5x5x5x5x5x5x5x d) 5x5x5x5x5 5) 27 - 72 =..... a) 79 b) 77 c) 456 d) 987 6) a3  x a2 x a5 =..... a) a12 b) 12a c) 56a d) 22a 7) 5x5 =..... a) 258 b) 25 c) 55 d) 99 8) 70 x 82 =..... a) 64 b) 98 c) 55 d) 098 9) 10x10x10 =..... a) 103 b) 30 c) 33 d) 45 10) 62 x 61 =..... a) 63 b) 73 c) 63 d) 36

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