□○□=□（只）

6+3=      8-5=      2+2=       9-7=

4+3=      7-1=      6-2=       3+3=

8-6=      7+3=      10-8=      9-5=

2+6+1=      9-9+5=      10-7+2=

3+4-2=      10-3-7=      6+4-8=

8-4+2=      5+3-6=      10-4-6=

7{#blank#}1{#/blank#}8=56      40{#blank#}2{#/blank#}5=8      36{#blank#}3{#/blank#}6=30

48{#blank#}4{#/blank#}8=6      20{#blank#}5{#/blank#}4=24      8{#blank#}6{#/blank#}8=16

□〇□＝□（颗）

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

5＋5＝                    10－1＝                    2＋6＝                      9－7＝                      10－3＝

8－4＝                      6－3＝                      8＋1＝                      5－1＝                      8＋2＝

6＋3＝                      7＋3＝                    10－5＝                    0＋0＝                      3－2＝