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四年级□算训练200题27070二924:22=900:30二800-32=621:27二442:26二230:10二493:29=572X1二880X1=868:14二925-25二66071二735:21=93672=550X1二83671=736・23二98070=940:20=730-10=86478=775:31=952X4二372:31=42971=427:61=902:22二544:34=744:24=306X7=756m8二432X6=9664-21=891—81=627:33=820:41=11773=609:29=100070=140-14二24076二756:21二854:61=440:20=260K26=507:39=814:74二169X3=880:55=830・83=979:89=871+67=624:39=938:67=532+38=901:53=836:44=228X9=410:41二18717二923:71=253X1=5884-21=675:45868+31=636:53=304:19=406X4=770:22=36179二867:51=644928二980-98二728:56=875:35二495—45=900:36=781:7仁646:34=550:55=660:44=864X8=980:35二840:24=928・32二528:33=66010二7934-61=140:10二391:23=851:37二910:35=690:69=830X0=、380:10二46873=79070二270/5=462;14二7684二840:28=950口0二689X3二649X1二182;13二702X3=792:33=910^14=450:25二616X4二663+13=600X5=800^40=882X4二940:20=775:31=493:29=871:13=544:34=324:27二616:56=221:17二45573二93H62=828936=810:27=310-31二276923二630:63=143:13二638:22=575—25=240^20=846X7二980:98=405X5二330:33二⑵71二928:32二552:24=216X8二858939=648:54=990=45=330X1二85077二495X5=253Kl=594:54二324:18二970-97二754:26=728:56=957:33=624:48=986^17=46878二806:26=918:34二440:20二918:27=455口3=893X7=760:20=507X3=600:10=620:62=391:17=627:19=750X5二954:53=704:64=756:36=840:20=935X1=65676二48072=837:31=990X1二864:24=88016二75672=560+35=97971=480・32=59070二728:26二880:10二602:43二400X6=36075二938口4二627—11=920:40二676:13=71571=920:46=429X1=682:11=。