9＋8＝{#blank#}2{#/blank#}

8＋8＝{#blank#}3{#/blank#}

9＋10＝{#blank#}4{#/blank#}

10＋5＝{#blank#}5{#/blank#}

5+8=           6+6=           7+7=   

7+4=           2+9=           16-2=

11+3=          15-3=          12-10=

2+10=          18-8=           5+6=

6+8=           8+4=           9+7=

{#blank#}1{#/blank#}+7=12      6+{#blank#}2{#/blank#}=17

{#blank#}3{#/blank#}+3=12      4+{#blank#}4{#/blank#}=11

{#blank#}5{#/blank#}+5=7+4        {#blank#}6{#/blank#}-5=2+9