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1、二年级（上）数学口算题(B)姓名 得分- 48+20= 60+25= 70-40= 44-9= 56-28= 18-0= 80-37= 53+28= 95=72 = 50+37= 49+10=50-40= 73+29= 34 = 90+9= 98-56= 0+47= 60-38=36-25= 86-58= 42-16= 42-19=75-59=48 =32-2= 52+23= 69-37= 44+39=70+19= 16+23=57-16= 91 = 28 = 55 = 80+20 = 75+10 = 72-54 = 39-15= 56+6 = 21+18= 53-29= 35+12= 86-
2、15= 57+31=36-27= 19-16= 34+18= 85-27=12+79=51-27= 51-42= 65-6=52+36= 24+26= 75+24= 45-38=45+36=16+40= 63-42= 53-37= 23+28= 48-18= 35+17= 50+22=62+12= 22+55= 46-28= 48-26= 86-45= 70-42= 72-54= 16+27=43-27= 63+25= 64-9= 40-12= 83-56=57+6=54-29= 79-64= 98-48= 64+24= 75-55=56-36= 67-60=85-50= 42-32= 43-7= 90+9= 34+6= 56-7 5 3 + 20 = 4 7 6 = 44 4 = 57 50-7 = 20 +（41-25）= 58 -3 + 40 = 45 +30 +8 = 56 + 8 4 =