部編版二年級數(shù)學(xué)上冊口算強(qiáng)化練習(xí)

1、部編版二年級數(shù)學(xué)上冊口算增強(qiáng)練習(xí)1、直接寫得數(shù)。36453454405779883269749749998946860182、口算。12615512412393662463051643455663、口算550200=57=568=30090=700+60=429=1000800=79090=729=83000=308080=78=358=80060=900500=497=4、口算。57=248=76=25-5=728=455=78=568=36+9=486=5、直接寫得數(shù)。74600100130030026336925001000140050035536、直接寫得數(shù)。2683369999778

2、4667109839574351/57、口算。302=402=404=405=505=602=603=604=804=802=909=906=8、直接寫出得數(shù)。223143729219320323329537536514418412516595103135173163329、直接寫得數(shù)330-30=5000+500=480-70=47=600-400=97=340+60=498=200+800=1600+400=485=3800-800=455=729=637=700+60=10、口算。28799965=83=18=45=43940+368870873011、直接寫出得數(shù)。8497805997

3、63671453549788461718892912、直接寫出得數(shù)。400+300=（_）1100-800=（_）860+500=（_）3000-2000=（_）800+1000=（_）5300-200=（_）4600-600=（_）7200-7000=（_）140-50=（_）2/513、口算。5595641624463173135741784061979433641383294114、直接寫出得數(shù)。8869123455114824135065081924644057003331521252515、直接寫出得數(shù)。3520136418792284375023303618589526133/5參

4、照答案11879142890386321904026223343146412253633503573907604620070083008300056438604007435342209956745852870010004415001900216122418726356245272273577302=60402=80404=160405=200505=250602=120603=180604=240804=320802=160909=810906=54087142314161627254727132422231143123525111930055004102820063400611000200093300098976010166381302484/520347618261132632185187208448410271270030013601000180051004000200901316715617876