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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
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