加法交换律和结合律简便计算 计算题 200道

加法交换律和结合律简便计算计算题加法交换律和结合律简便计算56+244+498=175+225+28=492+108+235=506+94+285=353+147+181=

200+300+307=210+390+210=300+200+452=53+247+273=147+653+109=

73+618+27=214+86+627=142+58+412=379+121+257=38+162+18=673+127+136=81+527+19=256+144+478=240+660+4=

238+162+452=285+315+248=845+55+81=23+463+77=

625+175+135=93+707+170=376+124+257=35+797+65=312+88+52=717+183+69=136+64+179=337+263+98=

323+77/513=74+526+217=455+345+84=387+513+19=

38+162+375=566+334+24=76+524+193=16+300+84=252+48+233=43+157+738=148+552+85=28+372+45=

591+209+198=78+322+172=74+826+45=78+122+484=

14+650+86=88+112+369=846+54+26=81+219+66=341+59+185=623+77+156=63+331+37=728+72+186=

14+486+356=149+551+294=7+536+93=93+21+7=

198+202+180=204+96+320=90+110+48=226+74+485=117+183+533=129+71+727=240+60+631=30+370+236=

170+730+55=285+315+162=487+413+95=739+61+199=

646+54+132=131+69+37=42+658+260=43+157+738=29+525+71=814+86+82=580+20+179=313+187+242=

135+65+503=381+19+330=450+250+59=473+427+37=

333+267+108=82+218+618=519+181+43=42+558+243=89+188+11=30+870+16=314+386+115=92+508+357=

109+91+378=36+864+11=271+429+16=298+202+140=

14+486+32=52+248+378=84+316+121=35+165+759=176+724+25=499+301+156=149+151+491=595+305+26=

6+294+27=52+148+527=42+258+332=844+56+18=

374+426+104=350+50+573=159+441+331=57+243+496=91+511+9=78+722+58=47+853+36=66+534+207=

173+27+290=13+487+26=154+46+783=260+240+458=

13+141+87=111+89+500=235+265+487=209+491+255=61+139+477=100+200+144=620+280+47=115+85+18=

184+216+120=337+63+68=202+198+188=4+340+96=