以下が九九の表.

• 1 2 3 4 5 6 7 8 9
• 2 4 6 8 10 12 14 16 18
• 3 6 9 12 15 18 21 24 27
• 4 8 12 16 20 24 28 32 36
• 5 10 15 20 25 30 35 40 45
• 6 12 18 24 30 36 42 48 54
• 7 14 21 28 35 42 49 56 63
• 8 16 24 32 40 48 56 64 72
• 9 18 27 36 45 54 63 72 81

以上が九九の表. セルは9*9の全部で81個.

1*1=1, 1*2=2, 1*3=3, 1*4=4, 1*5=5, 1*6=6, 1*7=7, 1*8=8, 1*9=9, 1*10=10, 1*11=11, 1*12=12, 1*13=13, 1*14=14, 1*15=15, 1*16=16, 1*17=17, 1*18=18, 1*19=19, 2*1=2, 2*2=4, 2*3=6, 2*4=8, 2*5=10, 2*6=12, 2*7=14, 2*8=16, 2*9=18, 2*10=20, 2*11=22, 2*12=24, 2*13=26, 2*14=28, 2*15=30, 2*16=32, 2*17=34, 2*18=36, 2*19=38, 3*1=3, 3*2=6, 3*3=9, 3*4=12, 3*5=15, 3*6=18, 3*7=21, 3*8=24, 3*9=27, 3*10=30, 3*11=33, 3*12=36, 3*13=39, 3*14=42, 3*15=45, 3*16=48, 3*17=51, 3*18=54, 3*19=57, 4*1=4, 4*2=8, 4*3=12, 4*4=16, 4*5=20, 4*6=24, 4*7=28, 4*8=32, 4*9=36, 4*10=40, 4*11=44, 4*12=48, 4*13=52, 4*14=56, 4*15=60, 4*16=64, 4*17=68, 4*18=72, 4*19=76, 5*1=5, 5*2=10, 5*3=15, 5*4=20, 5*5=25, 5*6=30, 5*7=35, 5*8=40, 5*9=45, 5*10=50, 5*11=55, 5*12=60, 5*13=65, 5*14=70, 5*15=75, 5*16=80, 5*17=85, 5*18=90, 5*19=95, 6*1=6, 6*2=12, 6*3=18, 6*4=24, 6*5=30, 6*6=36, 6*7=42, 6*8=48, 6*9=54, 6*10=60, 6*11=66, 6*12=72, 6*13=78, 6*14=84, 6*15=90, 6*16=96, 6*17=102, 6*18=108, 6*19=114, 7*1=7, 7*2=14, 7*3=21, 7*4=28, 7*5=35, 7*6=42, 7*7=49, 7*8=56, 7*9=63, 7*10=70, 7*11=77, 7*12=84, 7*13=91, 7*14=98, 7*15=105, 7*16=112, 7*17=119, 7*18=126, 7*19=133, 8*1=8, 8*2=16, 8*3=24, 8*4=32, 8*5=40, 8*6=48, 8*7=56, 8*8=64, 8*9=72, 8*10=80, 8*11=88, 8*12=96, 8*13=104, 8*14=112, 8*15=120, 8*16=128, 8*17=136, 8*18=144, 8*19=152, 9*1=9, 9*2=18, 9*3=27, 9*4=36, 9*5=45, 9*6=54, 9*7=63, 9*8=72, 9*9=81, 9*10=90, 9*11=99, 9*12=108, 9*13=117, 9*14=126, 9*15=135, 9*16=144, 9*17=153, 9*18=162, 9*19=171, 10*1=10, 10*2=20, 10*3=30, 10*4=40, 10*5=50, 10*6=60, 10*7=70, 10*8=80, 10*9=90, 10*10=100, 10*11=110, 10*12=120, 10*13=130, 10*14=140, 10*15=150, 10*16=160, 10*17=170, 10*18=180, 10*19=190, 11*1=11, 11*2=22, 11*3=33, 11*4=44, 11*5=55, 11*6=66, 11*7=77, 11*8=88, 11*9=99, 11*10=110, 11*11=121, 11*12=132, 11*13=143, 11*14=154, 11*15=165, 11*16=176, 11*17=187, 11*18=198, 11*19=209, 12*1=12, 12*2=24, 12*3=36, 12*4=48, 12*5=60, 12*6=72, 12*7=84, 12*8=96, 12*9=108, 12*10=120, 12*11=132, 12*12=144, 12*13=156, 12*14=168, 12*15=180, 12*16=192, 12*17=204, 12*18=216, 12*19=228, 13*1=13, 13*2=26, 13*3=39, 13*4=52, 13*5=65, 13*6=78, 13*7=91, 13*8=104, 13*9=117, 13*10=130, 13*11=143, 13*12=156, 13*13=169, 13*14=182, 13*15=195, 13*16=208, 13*17=221, 13*18=234, 13*19=247, 14*1=14, 14*2=28, 14*3=42, 14*4=56, 14*5=70, 14*6=84, 14*7=98, 14*8=112, 14*9=126, 14*10=140, 14*11=154, 14*12=168, 14*13=182, 14*14=196, 14*15=210, 14*16=224, 14*17=238, 14*18=252, 14*19=266, 15*1=15, 15*2=30, 15*3=45, 15*4=60, 15*5=75, 15*6=90, 15*7=105, 15*8=120, 15*9=135, 15*10=150, 15*11=165, 15*12=180, 15*13=195, 15*14=210, 15*15=225, 15*16=240, 15*17=255, 15*18=270, 15*19=285, 16*1=16, 16*2=32, 16*3=48, 16*4=64, 16*5=80, 16*6=96, 16*7=112, 16*8=128, 16*9=144, 16*10=160, 16*11=176, 16*12=192, 16*13=208, 16*14=224, 16*15=240, 16*16=256, 16*17=272, 16*18=288, 16*19=304, 17*1=17, 17*2=34, 17*3=51, 17*4=68, 17*5=85, 17*6=102, 17*7=119, 17*8=136, 17*9=153, 17*10=170, 17*11=187, 17*12=204, 17*13=221, 17*14=238, 17*15=255, 17*16=272, 17*17=289, 17*18=306, 17*19=323, 18*1=18, 18*2=36, 18*3=54, 18*4=72, 18*5=90, 18*6=108, 18*7=126, 18*8=144, 18*9=162, 18*10=180, 18*11=198, 18*12=216, 18*13=234, 18*14=252, 18*15=270, 18*16=288, 18*17=306, 18*18=324, 18*19=342, 19*1=19, 19*2=38, 19*3=57, 19*4=76, 19*5=95, 19*6=114, 19*7=133, 19*8=152, 19*9=171, 19*10=190, 19*11=209, 19*12=228, 19*13=247, 19*14=266, 19*15=285, 19*16=304, 19*17=323, 19*18=342, 19*19=361,