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二年级口算练习 姓名
21+18= 21+27= 21+19= 21-11= 19+19=
19+20= 19+28= 17+26= 17+30= 17+33=
16+40= 16+39= 16-14= 15+34= 15+29=
11+38= 49-40= 49-19= 49+11= 48-41=
48-19= 48-17= 48-23= 47+12= 47+30=
47-13= 47-39= 46+23= 46-18= 46-11=
46+20= 45+14= 45-13= 45+11= 45-22=
44+26= 44+16= 44-16= 44-24= 44-30=
44-37= 44-25= 44+23= 43-29= 43+48=
42-17= 42+18= 42-20= 42-41= 42-37=
32+16= 35+16= 36+24= 25+49= 38+21=
46+23= 36+18= 66+16= 38+28= 24+42=
76+13= 37+17= 25+46= 28+51= 56+18=
23+59= 17+66= 73+9= 34+29= 46+27=
62+25= 17+26= 21+29= 48+52= 38+38=
25+9= 54+19= 23+29= 35+28= 52-22=
72-48= 81-28= 68-35= 52-15= 79-45=
98-26= 60-23= 50-42= 86-35= 37-18=
92-47= 65-26= 72-15= 80-42= 81-36=
64-35= 98-75= 45-36= 54-8= 64-48=
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