3×4={#blank#}1{#/blank#}     5×8={#blank#}2{#/blank#}          6×7={#blank#}3{#/blank#}

9×3={#blank#}4{#/blank#}     7×9={#blank#}5{#/blank#}          2×4={#blank#}6{#/blank#}

3×8={#blank#}7{#/blank#}     5×5={#blank#}8{#/blank#}          6×8={#blank#}9{#/blank#}

4×5={#blank#}10{#/blank#}     6×2={#blank#}11{#/blank#}          3×7={#blank#}12{#/blank#}

4000克{#blank#}1{#/blank#}5千克     9435克{#blank#}2{#/blank#}10千克     45÷5{#blank#}3{#/blank#}10

3×7{#blank#}4{#/blank#}27÷9        45+7{#blank#}5{#/blank#}35+9          90-43{#blank#}6{#/blank#}6×9

9×5=      18+20=      58-47=     4×5=    8×7-7=

24+25=    35+12=      6×3=     26+13=    3×2×9=

5×7=      36-27=      45+13=    4×8=     68-19+19=

7+8=       14-13=      8×8=     36+2=    24+6+12=

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6×{#blank#}2{#/blank#}< 48

{#blank#}3{#/blank#}×5<32

{#blank#}4{#/blank#}×8<49