Number Grids

Number Grids

Square or Rectangular Number Grids

divisions) and columns (vertical divisions) in which numbers are arranged.

There is some relationship among the numbers either along the rows or along the columns.

The most important task is to check if the relationship exists along the rows or along the columns.
Missing number can be calculated using same pattern between the numbers in the respective row or column.

Lets solve some number grids

First row (4 ÷ 2) + (16 x 2) =34

Second row (18 ÷ 2) + (6 x 2) = 21

Third row : (20 ÷ 2) + (C X 2) = 52

: (C X 2) = 52 – 10

Missing Number: C = 42÷2=21

Missing Number: C = 21

First column: (4 x 7) + 4 = 32

Third column: (13 x 7) + 13 = 104

Missing Number: C = (26 X 3) + 26 =104

Missing Number: = 104

First column: 15 + 16 + 81 – 2 = 110

Third column: 13 + 16 + 113 – 2 = 140

Second column: 56 + b + 87 – 2 = 150

Missing Number: b = 150 – (87 + 56 + -2)

Missing Number: = 9

First Row: (15 X 15) – (13 X 13) = 56

Third Row: (16 X 16) – (13 X 13) = 87

Second Row: b = (16 x 16) – (14 X 14)

Missing Number: b = 60

Numbers can be arranged in many geometrical patterns but the concept remains the same.