72÷8＝{#blank#}1{#/blank#}，再乘4得{#blank#}2{#/blank#}．

3×3=        2×5=        2×8=         1×9=

5×9=        6×7=        49÷7=        4×8=

65>{#blank#}1{#/blank#}×7          55-9>9×{#blank#}2{#/blank#}                  8×{#blank#}3{#/blank#}<35

5×{#blank#}4{#/blank#}<34          4×{#blank#}5{#/blank#}<41-12             3×{#blank#}6{#/blank#}<20

2×5＝        72－32＝      3＋57＝      0×9＝        31－2＝

4×2＝        62－9＝         4×5＝        8＋41＝      3×5－8＝