应用加法交换律和结合律简便计算练习.docx
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应用加法交换律和结合律简便计算练习.docx
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应用加法交换律和结合律简便计算练习
13+138+687+62=
6+(157+94)=
499+16+284+101=
120+(229+80)=
265+435+91+9=
374+62+38+26=
135+(683+65)=
318+(229+382)=
260+(322+40)=
184+216+103+97=
46+254+139+161=
127+73+259+141=
221+479+46+54=
82+(167+18)=
102+42+498+58=
98+33+167+102=
388+12+188+312=
312+288+82+118=
361+(221+239)=
594+108+92+106=
218+(638+82)=
22+152+248+78=
405+(473+95)=
410+389+11+90=
109+591+82+118=
48+186+52+214=
69+69+231+31=
175+354+25+346=
129+71+118+282=
83+100+200+17=
76+(423+24)=
364+35+65+236=
82+(410+18)=
97+(21+3)=
92+53+47+108=
95+(610+5)=
113+(105+87)=
8+(326+392)=
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165+(327+135)=
308+165+35+292=
487+295+5+13=
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352+248+43+257=
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113+60+387+40=
84+386+14+216=
154+46+562+38=
199+174+1+526=
619+(144+81)=
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90+168+332+110=
347+(403+153)=
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121+371+29+379=
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531+(140+169)=
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190+10+634+66=
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518+92+8+182=
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33+(515+267)=
96+4+241+59=
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187+13+154+46=
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149+(132+551)=
220+(312+180)=
337+50+50+263=
45+316+284+55=
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59+84+716+41=
365+35+172+228=
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591+82+218+9=
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14+(104+86)=
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237+363+169+31=
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546+(313+54)=
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463+72+128+237=
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515+85+37+263=
310+(237+290)=
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154+53+47+46=
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178+84+416+222=
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575+183+17+125=
683+162+17+38=
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13+202+98+287=
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272+428+37+163=
145+(104+455)=
149+(358+151)=
222+(138+178)=
275+(231+125)=
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2+261+498+39=
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50+(251+50)=
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107+(491+293)=
387+113+145+55=
35+366+65+134=
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428+172+190+110=
75+93+425+307=
204+26+74+496=
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241+59+370+30=
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554+256+44+46=
566+174+34+26=
40+26+74+160=
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128+87+113+472=
61+564+236+39=
146+(71+54)=
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3+29+71+297=
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156+(459+44)=
106+(651+94)=
596+(78+104)=
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202+363+198+137=
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410+18+290+182=
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359+20+80+341=
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167+29+371+133=
353+66+47+34=
361+108+39+92=
30+96+470+104=
23+590+110+177=
56+(294+544)=
125+(708+75)=
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165+(33+535)=
133+138+167+62=
204+39+396+61=
392+135+108+65=
292+63+137+208=
70+(155+130)=
28+(478+172)=
200+200+421+79=
64+32+68+36=
26+74+220+80=
264+336+34+66=
131+295+5+269=
124+(481+176)=
88+212+67+33=
376+(389+24)=
154+390+346+10=
83+429+17+371=
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61+239+112+88=
347+74+26+153=
233+9+191+367=
462+(172+238)=
104+207+96+493=
217+145+155+283=
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125+(407+75)=
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454+(136+246)=
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244+72+128+256=
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20+280+139+161=
113+187+175+225=
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433+(275+267)=
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498+102+187+113=
435+(178+65)=
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35+297+565+3=
307+(2+93)=
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132+68+166+534=
285+(604+15)=
437+23+77+63=
163+29+71+337=
73+105+95+127=
679+(45+21)=
50+46+254+550=
5+36+295+264=
315+(365+85)=
141+24+359+276=
308+168+392+32=
99+289+11+301=
18+(68+382)=
129+71+109+291=
57+123+643+77=
218+103+197+82=
20+680+88+12=
108+99+592+101=
86+315+14+185=
23+477+58+42=
389+(527+11)=
176+424+148+52=
256+(37+244)=
158+(306+342)=
211+2+98+489=
93+298+2+407=
174+(273+426)=
357+78+122+143=
71+29+310+290=
127+
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