题干

直接写得数。

13–8 =____  17–3 =____22+5 =____60+23 –3=____

43+ 20=____7+60=____68– 6=____88– 50+30 =____

88–7 =____ 6+9 =____13-9=____75–60+70=____

90–20= ____ 50+48 =____ 74–40 =____78–8–30 =____

49+ 40=____15–8=____ 30+60 =____32+50–40 =____

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答案(点此获取答案解析)

5,14,27,80,63,67,62,8,81,15,4,85,70,98,34,40,89,7,90,42