北师大版小学二年级数学上册计算题.doc

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1、33+58–24=24+61–39=22+39–47=47–18+25=52–48+76=88–41+35=86–29–12=71–28–23=99–73–25=15+36+14=68+13+14=55+19+27=32+57–23=23+60–38=11+38–46=46–17+24=51–47+75=77–41+34=85–28–11=70–27–22=88–72–12=14+35+13=67+12+13=44+19+26=34+59–25=25+62–40=23+40–48=48–19+26=53–49+77=99–41+35

2、=87–30–13=72–29–24=84–13–25=16+37+15=69+14+15=56+20+17=24+38–25=25+37–40=13+58–48=47–19+26=53–16+77=70–41+35=65–28–13=72–25–24=62–13–25=24+37+15=69+13+15=56+19+17=33+58–34=34+62–39=33+39–47=47–28+35=53–48+76=88–42+35=86–39–23=72–38–33=99–53–35=25+36+24=48+23+24=33+29+3

3、7=33+57–33=33+60–38=22+38–46=46–27+34=52–47+75=77–42+34=85–38–22=70–37–33=88–43–23=24+35+23=47+23+23=24+29+36=34+59–35=35+63–40=33+40–48=48–29+36=53–49+77=99–42+35=87–30–23=73–39–34=84–23–35=65–38–23=73–15–34=63–23–35=26+37+25=39+24+25=16+30+27=34+38–35=35+37–40=23+58–

4、48=47–29+36=53–26+77=70–42+35=34+37+25=19+23+25=16+29+27=18+45-22=62-8+25=50+26+8=95-68+27=62-17-5=12+18-20=36-8+12=65-47+3=16+48-6=87-56+34=50-49+7=46+5-51=