13.85-4.26-4.26+5.26的简便运算

13.85-4.26-4.26+5.26的简便运算
13.85-4.26-4.26+5.26的简便运算

13.85-4.26-4.26+5.26的简便运算
13.85-4.26-4.26+5.26
=13.85-4.26+1
=14.85-4.26
=10.59

13.85-4.26-4.26+5.26
=13.85+(5.26-4.26)-4.26
=13.85+1-4.26
=14.85-4.26
=10.59
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