,第 六,单元,两三位数的加法和减法,练习六,第 六 单元 两三位数的加法和减法 练习六,1,1.,55+32=55-32=55+35=,55+38=55-38=90-35=,87,23,90,93,17,55,1.872390931755,2,2.,先口算上下两个数的和，再口算它们的差。,27,31,50,16,52,48,24,38,45,13,26,33,2.先口算上下两个数的和，再口算它们的差。273150165,3,3.,先说说哪几题得数比,50,小，再口算。,32+19=87-35=90-34=,23+19=78-35=90-43=,51,52,56,42,43,47,3.先说说哪几题得数比50小，再口算。51525642434,4,4.,68,31,90,46,17,23,77,18,51,83,4.68319046172377185183,5,5.,一辆汽车上有乘客,35,人，到卫星广场下车,15,人，上车,11,人。离开广场时车上还有乘客多少人？,5.一辆汽车上有乘客35人，到卫星广场下车15人，上车11人,6,6.,小英看一本,72,页的故事书。第一天看了,26,页，第二天看了,28,页，再看多少也才能看完？,6.小英看一本72页的故事书。第一天看了26页，第二天看了2,7,15,150,1500,8,80,800,151501500880800,8,900,1100,1400,200,600,800,90011001400200600 800,9,40,1700,40,130,90,140,200,900,1100,40170040130901402009001100,10,苏教版二年级数学下册练习六课件,11,160,110,80,60,1601108060,12,苏教版二年级数学下册练习六课件,13,苏教版二年级数学下册练习六课件,14,60,55,120,70,15,30,90,5,90,605512070153090590,15,99,85,140,74,26,34,25,60,99851407426342560,16,42,52,71,81,150,11,55,90,42527181150115590,17,苏教版二年级数学下册练习六课件,18,苏教版二年级数学下册练习六课件,19,苏教版二年级数学下册练习六课件,20,苏教版二年级数学下册练习六课件,21,猜一猜,32-14=,1 81-28=,3,38-12=,6 88-13=,5,73-,=,29,-56=,33,8,5,2,7,4,4,8,9,下面藏着几？,猜一猜32-14=1 81-28=3,22,动脑筋的你是最棒的！,7,35=4,7,35=3,想一想,动脑筋的你是最棒的！7 35=47 35=3,23,再见,再见,