25{#blank#}1{#/blank#}5=30      3{#blank#}2{#/blank#}9=27           4{#blank#}3{#/blank#}7=24{#blank#}4{#/blank#}4

55{#blank#}5{#/blank#}12=43     2{#blank#}6{#/blank#}2=1{#blank#}7{#/blank#}4     3{#blank#}8{#/blank#}6<2{#blank#}9{#/blank#}7

2×8{#blank#}1{#/blank#}18         4+4+4+4{#blank#}2{#/blank#}4+4 

9×4{#blank#}3{#/blank#}5×6       5元6角{#blank#}4{#/blank#}60角

6×3＝                      2×1＝                       14＋8＝                      4×6＝

3×7＝                      5×9＝                       3×8＝                         74－20＝