Showing posts with label Nineteen. Show all posts
Showing posts with label Nineteen. Show all posts

Monday, January 18, 2016

Mathematical Multiplication Nineteen (19x) Times Table Printable Version Blank And Answer Filled Worksheet Free Download Tool With Black And White Display

Mathematical Multiplication Nineteen (19x) Times Table Printable Version Blank And Answer Filled Worksheet Free Download Tool With Black And White Display

Times Table of Nineteen (19x) Printable Version Worksheet Free Download Tool

This tool is created only for educational purpose and functioning of tool varies depends on several aspects like type of platform, browser settings, screen resolution and other similar aspects.

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Wednesday, September 2, 2015

Internal Concept of Times Table of Nineteen

Now let’s have a look on the table of nineteen.
Here is the table of nineteen as given in textbooks etc.
          19 x 01 = 019
          19 x 02 = 038
          19 x 03 = 057
          19 x 04 = 076
          19 x 05 = 095
          19 x 06 = 114
          19 x 07 = 133
          19 x 08 = 152
          19 x 09 = 171
          19 x 10 = 190
Tip 1: Simply sum up the number twice then subtract the number from zero padded answer.
19 x 01 = 019 = ((01 x 2) x 10) - 01 = (02 x 10) - 01 = 020 - 01
19 x 02 = 038 = ((02 x 2) x 10) - 02 = (04 x 10) - 02 = 040 - 02
19 x 03 = 057 = ((03 x 2) x 10) - 03 = (06 x 10) - 03 = 060 - 03
19 x 04 = 076 = ((04 x 2) x 10) - 04 = (08 x 10) - 04 = 080 - 04
19 x 05 = 095 = ((05 x 2) x 10) - 05 = (10 x 10) - 05 = 100 - 05
19 x 06 = 114 = ((06 x 2) x 10) - 06 = (12 x 10) - 06 = 120 - 06
19 x 07 = 133 = ((07 x 2) x 10) - 07 = (14 x 10) - 07 = 140 - 07
19 x 08 = 152 = ((08 x 2) x 10) - 08 = (16 x 10) - 08 = 160 - 08
19 x 09 = 171 = ((09 x 2) x 10) - 09 = (18 x 10) - 09 = 180 - 09
19 x 10 = 190 = ((10 x 2) x 10) - 10 = (20 x 10) - 10 = 200 - 10
Tip 2: Justify the answers with help of sums of digits.
          19 x 01 = 019 = 0 + 1 + 9 = 10 = 1 + 0 = 1
          19 x 02 = 038 = 0 + 3 + 8 = 11 = 1 + 1 = 2
          19 x 03 = 057 = 0 + 5 + 7 = 12 = 1 + 2 = 3
          19 x 04 = 076 = 0 + 7 + 6 = 13 = 1 + 3 = 4
          19 x 05 = 095 = 0 + 9 + 5 = 14 = 1 + 4 = 5
          19 x 06 = 114 = 1 + 1 + 4 = 6
          19 x 07 = 133 = 1 + 3 + 3 = 7
          19 x 08 = 152 = 1 + 5 + 2 = 8
          19 x 09 = 171 = 1 + 7 + 1 = 9
          19 x 10 = 190 = 1 + 9 + 0 = 10 = 1 + 0 = 1