{#blank#}1{#/blank#}

8×1 =          7×4 =         8×8 =       9×4 + 9 =      8×6+3 =

9×9=          8×7=          7×7=       6×5 – 5 =      8×4 – 5 =

5×4=          2×8=          5×9=       7+9+7=         9×8 – 8 =

6×{#blank#}1{#/blank#}<38           {#blank#}2{#/blank#}×7<30 50>{#blank#}3{#/blank#}×7

9×{#blank#}4{#/blank#}<55          {#blank#}5{#/blank#}×8<43 64>{#blank#}6{#/blank#}×7

{#blank#}1{#/blank#}七二十一            {#blank#}2{#/blank#}十四

七七{#blank#}3{#/blank#}                  六{#blank#}4{#/blank#}四十二