①54+32=

②68-25=

③71-40=

④7+52=

⑤34+55=

⑥20+49=

⑦73+24=

⑧65+34=

13-8=       75+7=        46-9=        58+20=

86-6=       55+8=        62-7=        49+5=

9+27=       37-8=        56+20=       96-6=

21-5=       53+7=        80-4=        71-7=

12+9-8=     36+30-7=     25-6+40=

48+8-6=     5+48-6=      73-（4+5）=

54+4{#blank#}1{#/blank#}61            54－40{#blank#}2{#/blank#}12

42－8{#blank#}3{#/blank#}35            72+9{#blank#}4{#/blank#}81

46+23=            67-20=              73-23=

42-12=             45-25=              93-40=

83-3=              36+12=              45+30=