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11x22十0.22x3300十660x2.2用简便方法计算

题目详情
11x22十0.22x3300十660x2.2用简便方法计算
▼优质解答
答案和解析
11x22十0.22x3300十660x2.2
=11*22+0.22*33*100+66*10*2.2
=11*22+(0.22*100)*33+66*(10*2.2)
=11*22+22*33+66*22
=(1+33+66)*22+10*22
=2200+220
=2420