填上适当的数{#blank#}1{#/blank#}×5=20 6×{#blank#}2{#/blank#}=18 65+{#blank#}3{#/blank#}=93
49 – {#blank#}4{#/blank#}=15 16÷{#blank#}5{#/blank#}=4 {#blank#}6{#/blank#}÷3=4
{#blank#}7{#/blank#}×1=6 {#blank#}8{#/blank#}×2=2 {#blank#}9{#/blank#}÷5=1
3×{#blank#}10{#/blank#}=9 20÷{#blank#}11{#/blank#}=5 {#blank#}12{#/blank#}×4=8