加法交换律和结合律简便计算 计算题
699+201+12= | 33+367+312= | 58+842+47= |
119+581+79= | 492+8+384= | 62+138+343= |
39+161+707= | 11+802+89= | 300+100+90= |
379+521+89= | 696+104+151= | 44+756+147= |
195+605+140= | 571+29+353= | 92+893+8= |
284+616+39= | 246+254+304= | 715+85+131= |
72+428+24= | 501+199+286= | 38+462+114= |
522+78+368= | 54+846+80= | 737+163+15= |
63+437+191= | 126+274+79= | 339+561+61= |
75+458+25= | 160+140+1= | 95+205+558= |
57+658+43= | 186+14+193= | 367+133+57= |
68+242+32= | 153+547+181= | 488+312+126= |
31+369+161= | 387+213+87= | 304+396+227= |
213+7+693= | 636+64+169= | 107+93+9= |
840+60+18= | 168+332+361= | 87+113+456= |
72+760+28= | 155+45+544= | 174+726+28= |
419+181+274= | 64+736+40= | 718+182+35= |
565+235+157= | 884+16+2= | 59+768+41= |
111+89+356= | 85+115+769= | 55+290+45= |
312+88+595= | 280+120+452= | 188+412+266= |
77+497+23= | 580+20+138= | 508+392+45= |
273+527+100= | 773+27+6= | 159+241+82= |
264+36+223= | 16+884+22= | 217+583+128= |
50+450+297= | 400+300+40= | 155+45+47= |
2+186+98= | 459+341+60= | 261+139+550= |
26+174+88= | 175+125+308= | 226+74+485= |
45+686+55= | 71+129+217= | 218+82+551= |
613+287+56= | 44+756+135= | 32+668+257= |
176+224+381= | 386+514+5= | 146+454+354= |
354+246+95= | 413+187+18= | 187+413+195= |
72+128+167= | 30+170+34= | 71+50+29= |
298+602+25= | 471+29+257= | 126+274+566= |
282+18+262= | 91+192+9= | 265+135+413= |
222+378+23= | 290+410+144= | 65+409+35= |
224+76+639= | 340+160+383= | 146+754+97= |
479+221+97= | 705+195+88= | 646+154+162= |
521+179+150= | 399+101+28= | 158+742+39= |
78+222+269= | 175+25+245= | 218+282+76= |
375+425+191= | 67+333+426= | 141+2+798= |
468+32+350= | 55+145+49= | 348+52+345= |
667+33+7= | 304+496+66= | 126+274+212= |
417+283+171= | 165+35+482= | 336+264+351= |
763+37+87= | 145+55+591= | 298+602+85= |
408+92+152= | 96+704+52= | 93+21+7= |
29+271+541= | 76+524+10= | 50+334+50= |
8+692+249= | 127+273+326= | 293+407+259= |
194+706+98= | 221+179+457= | 27+173+705= |
56+140+44= | 506+94+108= | 289+111+432= |
386+414+128= | 54+446+293= | 58+388+42= |
23+90+77= | 11+281+89= | 136+64+354= |
264+36+82= | 212+388+371= | 26+604+74= |
627+173+37= | 44+608+56= | 141+659+130= |
610+190+164= | 42+78+58= | 10+490+94= |
161+739+88= | 308+92+466= | 136+364+52= |
66+250+34= | 493+107+257= | 52+322+48= |
40+329+60= | 343+457+45= | 24+176+752= |
574+126+292= | 91+24+9= | 473+127+174= |
498+202+4= | 1+699+154= | 97+403+430= |
178+322+285= | 119+581+79= | 430+170+158= |
78+122+341= | 29+632+71= | 2+198+573= |
238+562+164= | 89+880+11= | 409+91+23= |
81+719+151= | 117+183+19= | 549+151+20= |
55+545+314= | 111+89+542= | 184+216+186= |
230+370+340= | 752+148+73= | 383+117+156= |
365+435+109= | 81+319+12= | 21+731+79= |
169+131+121= | 484+16+124= | 72+228+306= |
24+876+19= | 164+36+209= | 557+143+251= |
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