{#blank#}1{#/blank#} + {#blank#}2{#/blank#} + {#blank#}3{#/blank#} = {#blank#}4{#/blank#}

9-2-3=               8+0-4=               5+3-5=

6+2-3=               9-4+1=               8-8+2=

7-3-2=               9-0-3=                8-5-3=

3+6-4=              4+5-6=                2+6+1=

8-0-3=               9-7+2=               8-3+3=

3＋5＝      2＋5＝     6＋2＝      3＋2＝    9－4＝

8－4＝      9－6＝     10－3＝     4+ 3=     5-5= 

4+2 -1=     6+4-8=     10-3-6=     9-4-3=     8+2-3=

□〇□〇□＝□（个）