简便运算 2008+200.8+20.08+200.8+1992+199.2+19.92+1.992

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简便运算2008+200.8+20.08+200.8+1992+199.2+19.92+1.992简便运算2008+200.8+20.08+200.8+1992+199.2+19.92+1.992简便

简便运算 2008+200.8+20.08+200.8+1992+199.2+19.92+1.992
简便运算 2008+200.8+20.08+200.8+1992+199.2+19.92+1.992

简便运算 2008+200.8+20.08+200.8+1992+199.2+19.92+1.992
=(2008+1992)+(200.8+199.2)+(20.08+19.92)+(2.008+1.992)
=4000+400+40+4
=4444