1 . 我会算．
71+6=                 8+51=             39-8=            4+26=             64-40=
5+52=                 46+3=             52+7=            23+8=             85-4=
76-50-20=          66-4-8=          63-8-2=        54+8+2=          35+9+1=
3×4＝               54÷6＝          9×6＝        20÷5＝          8×5＝
7÷7＝               1×9＝            18÷3＝       35＋5＝          2×8＝                                   
1元-3角=            36元-12元=            1元3角-9角=