1. (49 -36) × 8= 13 × 8 = 104
2. (12-81) + 11 × 64= -69 + 704= 635
3. 82 : 4 ×27 + 36 = 20,5 ×27 +36 = 553,5 + 36 = 589,5
4. 225 + 729 × 25 - 64= 225 + 32805 - 64 = 33030-64 = 32966
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1. (49 -36) × 8= 13 × 8 = 104
2. (12-81) + 11 × 64= -69 + 704= 635
3. 82 : 4 ×27 + 36 = 20,5 ×27 +36 = 553,5 + 36 = 589,5
4. 225 + 729 × 25 - 64= 225 + 32805 - 64 = 33030-64 = 32966