18 Times Table
Do you know that the 18 times table is a multiplication table that consists of double the multiples we obtain from the 9 times table? Surprised? In this chapter, we will read about various tricks to memorize 18 times tables. Before we start, let us look at the table of 18 chart.
Table of 18 Chart:
Multiplication Table of 18
Learning the multiplication table of 18 is easy if you know the 17 times table. Let us see how to obtain an 18 times table from the 17 times table. Adding natural numbers from 1 to 10 to the multiples of 17 times table, we can easily obtain 18 times table. For example,
 17 × 1 = 17 + 1 = 18
 17 × 2 = 34 + 2 = 36
 17 × 3 = 51 + 3 = 54
 17 × 4 = 68 + 4 = 72 and so on
Below is the complete 18 times table for 1 to 10 natural numbers using the above method. Go through the 18 times table for fast calculations.
18 Times Table
18 Times Table up to 10  
18 × 1 = 18  18 × 6 = 108 
18 × 2 = 36  18 × 7 = 126 
18 × 3 = 54  18 × 8 = 144 
18 × 4 = 72  18 × 9 = 162 
18 × 5 = 90  18 × 10 = 180 
>> Download 18 Times Table Chart
Tips for 18 Times Table
To memorize the 18 times table, there are some special tricks you can follow:
1. We can find the 18 times tables with the help of 19 times tables just by subtracting 1  10 natural numbers from the multiples of 19. Subtract the same number from the multiple with which you are multiplying 19.
For example,
 19 x 11 = 209  11 = 198
 19 x 12 = 228  12 = 216
 19 x 13 = 247 13 = 234 and so on.
2. First, we need to memorize the 8 times table. The first 10 multiples of 8 are 8, 16, 24, 32, 40, 48, 56, 64, 72, 80 . . . . To obtain the multiples of 18, add natural numbers to the ten's digit of the multiples of 8. Hence, the 18 times table is obtained as follows: (1+0)8, (2+1)6, (3+2)4, (4+3)2, (5+4)0, (6+4)8, (7+5)6, (8+6)4, (9+7)2, (10+8)0 = 18, 36, 54, 72, 90, 108, 126, 144, 162, 180.
3. You can also fix the digits at one's place as 8, 6, 4, 2, and 0 as you can see these are the numbers and patterns followed by 18 times tables followed by adding first 5 consecutive odd numbers at ten's digit place and then next 5 consecutive even numbers at ten's digit place.
Table of 18 up to 20
Here is the table of 18 for you using the above method for natural numbers 11 to 20.
18 × 11 = 198  18 × 16 = 288 
18 × 12 = 216  18 × 17 = 306 
18 × 13 = 234  18 × 18 = 324 
18 × 14 = 252  18 × 19 = 342 
18 × 15 = 270  18 × 20 = 360 
Worksheet on Table of 18

Example 1: With help of an 18 times table, Find: a) What is 18 times 8? and b) What is 18 times 7 minus 5?
Solution:
a) 18 times 8
First, we will write 18 times 8 mathematically.
Using 18 times table, we have 18 times 8 = 18 × 8 = 144
Hence, 18 times 8 is 144.
b) 18 times 7 minus 5
First, we will write 18 times 7 minus 5 mathematically.
Using 18 times table, we have: 18 times 7 minus 5 = 18 × 7  5 = 126  5 = 121
Hence, 18 times 7 minus 5 is 121.

Example 2: If a dog eats 3 bones in a day. Evaluate using the table of 18, how many bones will the dog eat in 18 days?
Solution:
Number of bones the dog eats in one day = 3, therefore, number of bones the dog will eat in 18 days = 18 x 3 = 54
Hence in 18 days, the dog will eat 54 bones.

Example 3: Sam distributes 5 candies in one day? Using the 18 times table find how many candies will Sam distribute in 18 days?
Solution:
Number of candies Sam distributes in one day = 5, therefore, number of candies Sam distributes in 18 days = 18 x 5 = 90
Hence in 18 days, Sam will distribute 90 candies.
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