2020年二年级数学下册 7.2 几百几十加减几百几十笔算练习题 新人教版.doc

2020年二年级数学下册 7.2 几百几十加减几百几十笔算练习题 新人教版笔算下列各题：320 + 210 = 560 + 110 = 250 + 220 = 370 + 120 =840 + 160 = 770 + 240 =480 + 230 = 330 + 390 =450 + 470 = 390 + 250 =550 + 390 = 190 + 250 =360 +250 = 440 + 180 =780 250 = 360 120 = 440 130 = 660 250 =360 270 = 710 230 =420 130 = 370 280 =250 160 = 520 140 =960 580 = 630 250 =760 290 = 550 290 =310 120 = 440 -250 =答案：320 + 210 = 530 560 + 110 =670 250 + 220 =470 370 + 120 =490840 + 160 =1000 770 + 240 =1100480 + 230 =710 330 + 390 =720450 + 470 =920 390 + 250 =640550 + 390 =940 190 + 250 =440360 +250 =610 440 + 180 =620780 250 =530 360 120 =240 440 130 =310 660 250 =410360 270 =90 710 230 =480420 130 =290 370 280 =90250 160 =90 520 140 =380960 580 =360 630 250 =380760 290 =470 550 290 =260310 120 =190 440 -250 =190小学教育资料好好学习，天天向上！第 4 页 共 4 页