{#blank#}1{#/blank#}×{#blank#}2{#/blank#}＝{#blank#}3{#/blank#}×{#blank#}4{#/blank#}＝24

每本{#blank#}1{#/blank#}元，买{#blank#}2{#/blank#}本，共花{#blank#}3{#/blank#}元．

{#blank#}4{#/blank#}×{#blank#}5{#/blank#}={#blank#}6{#/blank#}(元)

4个2相加                                            2×4=8

6+6+6                       4×2                  5乘4

4 + 4+4 +4 +4           6×3                 乘数是6和3

3+3+3+3+3+3           5×4                 2+2+2+2

5 +5 + 5 +5                                        3×6

2乘4                                                    4×5