70+979 45+2064
63-370 50+2857
77-7077-7 30+646-6
53-{#blank#}2{#/blank#}=13
35+{#blank#}3{#/blank#}=65
14﹣9 {#blank#}1{#/blank#}13﹣8
12﹣3 {#blank#}2{#/blank#}14﹣6
65﹣5 {#blank#}3{#/blank#}65﹣50
60+8 {#blank#}4{#/blank#}90﹣20
84﹣40 {#blank#}5{#/blank#}48﹣4
84﹣9 {#blank#}6{#/blank#}31+20