加法交换律和结合律简便计算

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400+27+173+300=(______+______)+(______+______)=______+______=______
125+129+575+71=(______+______)+(______+______)=______+______=______
74+118+182+26=(______+______)+(______+______)=______+______=______
44+(138+556)=(______+______)+______=______+______=______
195+(121+105)=(______+______)+______=______+______=______
186+514+34+66=(______+______)+(______+______)=______+______=______
10+144+490+56=(______+______)+(______+______)=______+______=______
125+75+193+7=(______+______)+(______+______)=______+______=______
134+39+161+266=(______+______)+(______+______)=______+______=______
84+416+175+25=(______+______)+(______+______)=______+______=______
536+(301+64)=(______+______)+______=______+______=______
164+(70+536)=(______+______)+______=______+______=______
87+(798+13)=(______+______)+______=______+______=______
96+604+127+73=(______+______)+(______+______)=______+______=______
278+273+227+22=(______+______)+(______+______)=______+______=______
166+(538+34)=(_ห้องสมุดไป่ตู้____+______)+______=______+______=______
224+66+476+34=(______+______)+(______+______)=______+______=______
118+117+482+83=(______+______)+(______+______)=______+______=______
386+(253+114)=(______+______)+______=______+______=______
227+73+352+248=(______+______)+(______+______)=______+______=______
207+111+93+189=(______+______)+(______+______)=______+______=______
63+57+137+543=(______+______)+(______+______)=______+______=______
95+(713+5)=(______+______)+______=______+______=______
278+22+181+119=(______+______)+(______+______)=______+______=______
72+114+228+86=(______+______)+(______+______)=______+______=______
219+381+211+89=(______+______)+(______+______)=______+______=______
323+(362+277)=(______+______)+______=______+______=______
346+249+154+51=(______+______)+(______+______)=______+______=______
45+55+142+258=(______+______)+(______+______)=______+______=______
114+186+14+286=(______+______)+(______+______)=______+______=______
33+(266+567)=(______+______)+______=______+______=______
544+69+56+31=(______+______)+(______+______)=______+______=______
35+65+481+119=(______+______)+(______+______)=______+______=______
419+107+293+81=(______+______)+(______+______)=______+______=______
93+(555+107)=(______+______)+______=______+______=______
425+275+100+100=(______+______)+(______+______)=______+______=______
329+33+271+67=(______+______)+(______+______)=______+______=______
479+39+21+61=(______+______)+(______+______)=______+______=______
48+129+71+352=(______+______)+(______+______)=______+______=______
314+(40+86)=(______+______)+______=______+______=______
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