问1到9的乘法口诀和算式怎么写

1到9的乘法口诀如下：1x1=11x2=2 2x2=41x3=3 2x3=6 3x3=91x4=4 2x4=8 3x4=12 4x4=161x5=5 2x5=10 3x5=15 4x5=20 5x5=251x6=6 2x6=12 3x6=18 4x6=24 5x6=30 6x6=361x7=7 2x7=14 3x7=21 4x7=28 5x7=35 6x7=42 7x7=491x8=8 2x8=16 3x8=24 4x8=32 5x8=40 6x8=48 7x8=56 8x8=641x9=9 2x9=18 3x9=27 4x9=36 5x9=45 6x9=54 7x9=63 8x9=72 9x9=81算式如下：(1)*1=1(1)*2=2 (2)*2=4(1)*3=3 (2)*3=6 (3)*3=9(1)*4=4 (2)*4=8 (3)*4=12 (4)*4=16(1)*5=5 (2)*5=10 (3)*5=15 (4)*5=20 (5)*5=25(1)*6=6 (2)*6=12 (3)*6=18 (4)*6=24 (5)*6=30 (6)*6=36(1)*7=7 (2)*7=14 (3)*7=21 (4)*7=28 (5)*7=35 (6)*7=42 (7)*7=49(1)*8=8 (2)*8=16 (3)*8=24 (4)*8=32 (5)*8=40 (6)*8=48 (7)*8=56 (8)*8=64(1)*9=9 (2)*9=18 (3)*9=27 (4)*9=36 (5)*9=45 (6)*9=54 (7)*9=63 (8)*9=72 (9)*9=81