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第 8 课时 两位数减两位数的口算 (1)57-35= (2) 56-38= (3) 85-51= (4)26-0= (5) 95-19= (6) 45-11= (7)75-26= (8) 48-36= (9)65-9= (10)98-10= (11)31-25= (12) 93- 11= (13)40-30= (14)53-17= (15) 29-18= (16) 76-59= (17)83-74= (18) 55-41= (19) 38-37= (20) 80- 75=答案提示: 22,18,34,26,76,34,49,12,56,88,6,82,10,36,11, 17,9,14,1,5 答案提示: 略





























































