384+63=                  800-198=                   503-305=

{#blank#}1{#/blank#}

3745＋2609={#blank#}1{#/blank#}

482＋99

=482＋100＋1

=582＋1

=583

①384+218=

②758-365=

③*280+376=

④600-386=

⑤804-397=

⑥ *528+275=

⑦523-386 +465 =

⑧287 +436-587=

⑨912-346-289=

69÷3 {#blank#}1{#/blank#}96÷3     278+354 {#blank#}2{#/blank#}278+345      621﹣418 {#blank#}3{#/blank#}501﹣298

72+3 {#blank#}4{#/blank#}72×3     160×5 {#blank#}5{#/blank#}150×6              700×5 {#blank#}6{#/blank#}700×2×3