4×7={#blank#}1{#/blank#}  9×3={#blank#}2{#/blank#}  2×5={#blank#}3{#/blank#}  36+25={#blank#}4{#/blank#}

7×3={#blank#}5{#/blank#}  1×4={#blank#}6{#/blank#}  4×6={#blank#}7{#/blank#}   92﹣20={#blank#}8{#/blank#}

3×4={#blank#}9{#/blank#}  5×7={#blank#}10{#/blank#}  6×3={#blank#}11{#/blank#}  86﹣9={#blank#}12{#/blank#}

5×7{#blank#}3{#/blank#}7×8      5＋5＋5＋5{#blank#}4{#/blank#}4×5

32－12{#blank#}5{#/blank#}6×3      6×6{#blank#}6{#/blank#}12

5×8=         81÷9=          15÷5=       3×6=

42÷7=        18÷3=          45÷9=       49-30=

18+9=        7×7=           58-8=        45+8=

200+500=     9000-3000=    1700-900=    800+600=

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

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