Easy way to
learn Table of 19
19 x n
= 2n-1 and
10 - n
19 x 1 = 19 2x1 =2 -1=1 10-1 =
9
19 x 2 = 38 2x2 =4 -1=3 10-2 = 819 x 3 = 57 2x3 =6 -1=5 10-3 = 7
19 x 4 = 76 2x4 =8 -1=7 10-4 = 6
19 x 5 = 95 2x5 =10 -1=9 10-5 = 5
19 x 6 = 114 2x6 =12 -1=11 10-6 = 4
19 x 7 = 133 2x7 =14 -1=13 10-7 = 3
19 x 8 = 152 2x8 =16 -1=15 10-8 = 2
19 x 9 = 171 2x9 =18 -1=17 10-9 = 1
19 x 10 = 190 2x10 =20 -1=19 10-10 = 0
From 11 to 20
19 x n
= 2n-2 and
10 - n
19 x 11 = 209 2x11 =22 -2=20 10-1 = 9
19 x1 2 = 228 2x12 =24 -2=22 10-2 = 819 x1 3 = 247 2x13 =26 -2=24 10-3 = 7
19 x1 4 = 266 2x14 =28 -2=26 10-4 = 6
19 x 15 = 285 2x15 =30 -2=28 10-5 = 5
19 x1 6 = 304 2x16 =32 -2=30 10-6 = 4
19 x 17 = 323 2x17 =34 -2=32 10-7 = 3
19 x 18 = 342 2x18 =36 -2=34 10-8 = 2
19 x1 9 = 361 2x19 =38 -2=36 10-9 = 1
19 x 20 = 380 2x20 =40 -2=38 10-10 = 0