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

9×3 =       8×3 =       2×9=         8×6 =

80 – 59 =      35 + 49 =     77 – 77 =       9+76 =

7盒有多少个？8盒、9盒呢？

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

8×9=       4×6=         9×8=        2×9+9=

8×2=       4×9=         8×7=        1 ×8 – 8 =

9×=45        4×=36      ×9=63

9×=9         ×9=72        5×=40

例：