18 Times Table — Multiples, Tricks, Examples

TL;DR

The 18 times table lists the multiples of 18, running 18, 36, 54, 72, 90 up to 18 × 10 = 180 and 18 × 20 = 360. This article gives the chart up to 10 and up to 20, the table in words, the multiples of 18, fast tricks, worked examples, and practice questions with answers.

Multiplication Table of 18

Table of 18 up to 10

Table of 18 up to 20

Table of 18 in Words

Saying the table aloud is how most learners lock it in, so here is the spoken form for the first ten rows.

• One time 18 is 18
• Two times 18 is 36
• Three times 18 is 54
• Four times 18 is 72
• Five times 18 is 90
• Six times 18 is 108
• Seven times 18 is 126
• Eight times 18 is 144
• Nine times 18 is 162
• Ten times 18 is 180

What Is the 18 Times Table?

The 18 times table is the list of products you get when you multiply 18 by the whole numbers 1, 2, 3, and onward. Multiplication here is repeated addition, so each row adds one more 18 to the row above it.

That build looks like this:

18 + 18 + 18 = 54

Because 18=2×9, every entry is also double the matching entry in the 9 times table.

Multiples of 18

The first twelve multiples of 18 are:

18, 36, 54, 72, 90, 108, 126, 144, 162, 180, 198, 216.

Every entry in the table is a multiple of 18, and every multiple of 18 is even because 18 itself is even. Each multiple's digits also add to a multiple of 9.

How to Learn the 18 Times Table (Patterns, Not Memorizing)

Bhanzu teaches the few patterns that generate a table rather than drilling 100 separate facts into a child, so a student builds number sense and the mental agility they carry into algebra instead of flashcard recall that fades. The patterns below all come from what 18 is made of.

Split 18 as 10 + 8 (place value). This works because 18=10+8, so 18×n=10×n+8×n. Take 18×7: 10×7=70 and 8×7=56, then 70+56=126.

Reuse the 9 times table by doubling. Because 18=2×9, the 18s are the 9s doubled, so you lean on a table you already know. 9×5=45, doubled gives 18×5=90; 9×7=63, doubled gives 18×7=126.

Understand the digit-sum-9 pattern. The digits of every multiple of 18 add to 9 or a multiple of 9, because 18 is a multiple of 9.

How to Read and Use the 18 Times Table

Read a row left to right: 18×6=108 is "eighteen multiplied by six equals one hundred eight." To learn it, skip-count aloud in eighteens, chant the rows in order, then test yourself out of order.

Where the 18 Times Table Appears

Eighteen is the age of legal adulthood in many countries. It shows up on the golf course, where a standard round is 18 holes, and is a common count of items in a carton.

Solved Examples

Example 1

What is 18 × 5?
Double the 9-times value.

Final answer: 18×5=90.

Example 2

A tray holds 18 muffins. How many muffins are in 6 trays?
The final answer is 108 muffins.

Example 3

Find 18 × 12.
Final answer: 18×12=216.

Example 4

18 times what equals 324?
Final answer: 18×18=324.

Example 5

A golf round is 18 holes. How many holes are played in 15 rounds?
Final answer: 270 holes.

Common Mistakes

1. Doubling the wrong table
   The correct way: Double the 9 times table, since 18=9×2.
2. Subtracting the wrong amount
   The correct way: Subtract 2×n, not 2.

Practice Questions

1. 18×3=?
2. 18×9=?
3. 18×13=?
4. A box holds 18 crayons. How many crayons in 7 boxes?
5. 18×18=?
6. Which is larger, 18×10 or 9×20?
7. 18×20=?

Answers: 1) 54 2) 162 3) 234 4) 126 crayons 5) 12 6) equal, both 180 7) 360

Frequently Asked Questions

What is 18 times 12?
18×12=216.

Is the 18 times table just the 9 times table doubled?
Yes.

Are all the multiples of 18 even?
Yes.

Why do the digits of multiples of 18 add up to 9?
Because 18 is a multiple of 9.

What is 18 times 18?
18×18=324.

What is the 18 times table up to 100?
Up to 100 you reach 18×5=90.