9+8=117 16+13=329 19+11=830
23+18=?
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Answer:
541
Step-by-step explanation:
Answer: 541
Step-by-step explanation:9+8= (9-8)(9+8) 117
16+13= (16-13)(16+13) 329
19+11=(19-11)(19+11) 830
23+18=(23-18)(23+18) 541
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