43 + 5 =         55 + 4 =         67 + 2 =       3 + 62 =

43 +50 =        55 +40 =         67 +20 =      30 +62 =

87 – 60 =        68 – 30 =        45 – 40 =      56 – 20 =

87 – 6 =         68 – 3 =         45 – 4 =        56 – 2 =

26+9{#blank#}1{#/blank#}36       34+7{#blank#}2{#/blank#}40        86{#blank#}3{#/blank#}76+8

39-4{#blank#}4{#/blank#}35       68-40{#blank#}5{#/blank#}28       76-8{#blank#}6{#/blank#}67

58-5{#blank#}7{#/blank#}58-50    26+30{#blank#}8{#/blank#}63-7     96-70{#blank#}9{#/blank#}6+70

20+62{#blank#}10{#/blank#}62+8    56-20{#blank#}11{#/blank#}56-2     72+8{#blank#}12{#/blank#}8+72

66-30{#blank#}13{#/blank#}63      81+7{#blank#}14{#/blank#}87        76-6{#blank#}15{#/blank#}86

37+7    44+8    27+9     84-40    60-8

36               44         52

3+1315 15-315-4

16-107 7+1012+5