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

(按从上到下的顺序填写)

鸭有{#blank#}1{#/blank#}只，鹅有{#blank#}2{#/blank#}只.

四{#blank#}1{#/blank#}二十       三{#blank#}2{#/blank#}二十四       四{#blank#}3{#/blank#}二十八

{#blank#}4{#/blank#}六十八        {#blank#}5{#/blank#}八三十二        {#blank#}6{#/blank#}九三十六

三{#blank#}7{#/blank#}十二       三{#blank#}8{#/blank#}二十七         {#blank#}9{#/blank#}四十六

2×5 =      4 × 6 =       5 ×3 =       8 ×5 = 

5 +5 =       5×5 =        3 × 5=       2 ×9 =

7×4 =      3×6 =         6×5 =        4 ×1=

4× 8 =     7 ×3 =       4 × 4 =       4 + 4 =