3 0 0 道异分母分数加减法计算题 1 21 + 31 = 21 - 41 = 52 - 51 = 74 - 71 = 87 - 83 = 1 01 + 52 = 65 - 32 = 31 + 51 = 83 - 41 = 32 + 31 = 1 25 -1 25 = 1 09 -1 01 = 54 - 52 = 61 + 31 = 21 - 81= 83 + 83 = 21 - 51 = 74 + 73 = 1- 87 = 65 + 65 = 1-1 25 = 53 + 21 = 1 09 -1 03 = 75 - 75 = 83 + 85 = 61 +1 27 = 41 + 43 = 73 + 21 = 1 09 - 21 = 1 09 - 53 = 59 +89 = 18 + 78 = 1924 - 1324 = 1936 + 336 = 37 + 47 = 118 -18 = 14 -19 = 1213 - 313 = += - = 89 +411 +19 = 1 -16 -16 = 34 +14 +14 = 78 -38 +38 = + = -= + = - = 7383 3197 58 - 310 + 14 = 1 - 124 + 548 = 35 + 23 + 16 = 57 - 415 = 27 - 215 = 34 -﹙34 -23 ﹚= 2-18 -78 = 38 +34 = 45 -14 +13 = 1- 712 +34 = 3 0 0 道异分母分数加减法计算题 2 910 + 320 - 315 = 2728 +﹙1314 -57 ﹚= 56 -﹙23 - 712 )= 14 +12 +56 56 -﹙13 +12 ﹚= 81+1 52+ 87 65+ 43- 31 = 1112 - ( 16 + 18 ) = 712 - ( 34 - 12 )= 54+ 32= 12 -(34 -38 )= 43+ 75+ 21 = 54+ 32+ 51 = 1 75- 5 14+ 32 = 1-1 81 7-1 81 = 1-1 81 7-1 81 = 1 07-( 73-1 03)= 1 21 1+1 61 5+1 58= 512 +34 + 112 = 710 -38 -18 = 81 +1 52 + 87 = 65 + 43 - 31 = 1112 - ( 16 + 18 )= 712 - ( 34 - 12 ) 12 -(34 -38 )= 56 -(13 + 310 )= 23 +56 - 16 = 59 +45 +49 = 415132 517352 5132 4351 8172 6185 3143 2153 4194 3153 7197 5132 3 0 0 道异分母分数加减法计算题 3 3 0 0 道异分母分数加减法计算题 4 3 0 0 道异分母分数加减法计算题 5 3 0 0 道异分母分数加减法计算题 6