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解:36.7乘2.1+10.8
= 36.7 × 2.1 + 10.8
= (36×10 + 7)/10 × (2×10 + 1)/10 + (10×10 + 8)/10
= 367/10 × 21/10 + 108/10
= 7707/100 + 1080/100
= 8787/100
= 87.87
= 36.7 × 2.1 + 10.8
= (36×10 + 7)/10 × (2×10 + 1)/10 + (10×10 + 8)/10
= 367/10 × 21/10 + 108/10
= 7707/100 + 1080/100
= 8787/100
= 87.87
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