⑴one+two+three={#blank#}1{#/blank#}                   A. eight

⑵ten-three+one={#blank#}2{#/blank#}                    B. six

⑶nine-three-four={#blank#}3{#/blank#}                   C. nine

⑷six-one+four={#blank#}4{#/blank#}                      D. seven

⑸eight+five-six={#blank#}5{#/blank#}                      E. two

{#blank#}1{#/blank#}        {#blank#}2{#/blank#}        {#blank#}3{#/blank#}        {#blank#}4{#/blank#}        {#blank#}5{#/blank#}