分数加减法口算练习
21111311-= + = + = + =
3223442475751141 - = - = - = += 888644541-= +
1391555= += +=
38+1927= 712 + 18 = 34 -23 = 1-19 = 1+512 +34 = 415 +56 = 23 +56 = 37+12= 45-310= 115-6= 58+78= 45-13=
8276866 2 + 111535 = 2-6= 7+ 9 =
34 +12 - 56 = 35 +18 = 2-3
4 = 65 -35 = 213 - 17 = 38 +58 = 38 = 11113 -6 = 6 +4 = 34 +112 = 733110 -8 = 8 -8 = 34 -38 = 13 +35110 = 6 -3 = 3517138+8= 6+12= 4+4= 910-193212= 10-5= 3-6= 719+1119= 515112-12= 6+3= 16+14= 17-18= 118+8= 38+12= 1-49= 819-3= 16+18= 41737-7= 8-8=
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