15 Times Table — Multiples, Tricks, Examples
15 Times Table — Multiples, Tricks, Examples
TL;DR
The 15 times table lists the multiples of 15, running 15, 30, 45, 60, 75 up to 15 × 10 = 150 and 15 × 20 = 300. This article gives the chart up to 10 and up to 20, the table in words, the multiples of 15, fast tricks, worked examples, and practice questions with answers.
Multiplication Table of 15
Table of 15 up to 10
| Multiplication | Product |
|---|---|
| 15×1 | 15 |
| 15×2 | 30 |
| 15×3 | 45 |
| 15×4 | 60 |
| 15×5 | 75 |
| 15×6 | 90 |
| 15×7 | 105 |
| 15×8 | 120 |
| 15×9 | 135 |
| 15×10 | 150 |
Table of 15 up to 20
| Multiplication | Product |
|---|---|
| 15×11 | 165 |
| 15×12 | 180 |
| 15×13 | 195 |
| 15×14 | 210 |
| 15×15 | 225 |
| 15×16 | 240 |
| 15×17 | 255 |
| 15×18 | 270 |
| 15×19 | 285 |
| 15×20 | 300 |
Table of 15 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 15 is 15
- Two times 15 is 30
- Three times 15 is 45
- Four times 15 is 60
- Five times 15 is 75
- Six times 15 is 90
- Seven times 15 is 105
- Eight times 15 is 120
- Nine times 15 is 135
- Ten times 15 is 150
What Is the 15 Times Table?
The 15 times table is the list of products you get when you multiply 15 by the whole numbers 1, 2, 3, and onward. Multiplication here is repeated addition, so each row adds one more 15 to the row above it.
That build looks like this:
151515
15+15=30
15+15+15=45
15+15+15+15=60
Because 15=3×5, every entry is also three times the matching entry in the 5 times table.
Multiples of 15
The first twelve multiples of 15 are:
15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, 180.
Every entry in the table is a multiple of 15, and every multiple of 15 ends in either 5 or 0 because 15 ends in 5. A multiple is just a number you reach by multiplying 15 by a whole number, so the table and the multiples are the same list written two ways.
How to Learn the 15 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 15 is made of, so you can rebuild any row instead of recalling it. The place-value split is the spine: because 15 is 10 and 5, every product reasons out the same way.
Split 15 as 10 + 5 (place value). This works because 15=10+5, so 15×n=10×n+5×n, and the 5-part is always half the 10-part. Take 15×6: 10×6=60 and 5×6=30, then 60+30=90. This is the distributive idea you will meet again in algebra.
Multiply by 30, then halve. Because 15=30÷2, you can reason 15×n=(30×n)÷2. Take 15×8: 30×8=240, halved gives 120. This is quick when the multiplier is even.
Understand why the units flip between 5 and 0. Odd multipliers end in 5, even multipliers end in 0: 15×3=45 ends in 5, 15×4=60 ends in 0. That comes from 15 ending in 5, so a products list that breaks the pattern has an error in it.
How to Read and Use the 15 Times Table
Read a row left to right: 15×6=90 is "fifteen multiplied by six equals ninety." The first factor is the group size, the second factor is how many groups, and the product is the total.
To learn it, skip-count aloud in fifteens, chant the rows in order, then test yourself out of order so you are recalling, not reciting. Because 15 also counts the minutes in a quarter-hour, reading a clock face is built-in practice: a quarter past, half past, and quarter to are 15, 30, and 45.
Where the 15 Times Table Appears
Fifteen is a quarter of an hour, so the 15 times table is the arithmetic of clock quarters: every quarter-hour mark, every appointment slot, and every billing block measured in fifteen-minute units lands on a multiple of 15. It shows up in geometry too, where a clock's hour hand sweeps 30 degrees an hour, so it moves 15 degrees in the half-hour and steps through multiples of 15 across the dial. Anyone splitting an hour into quarters is reading off this table.
Solved Examples
Example 1
What is 15 × 4?
Use the multiply-by-10-then-add-half method.
10×4=40
5×4=20
40+20=60
Final answer: 15×4=60.
Example 2
A movie ticket costs 15 dollars. How much do 8 tickets cost?
10×8=80, writing 80 dollars.
That breaks, because it ignores the extra 5 in each ticket. Eight tickets carry 5×8=40 more than the tens part alone.
Add both parts: 80+40=120.
Final answer: 120 dollars.
Example 3
Find 15 × 12.
Halve the 30-times value.
30×12=360
360÷2=180
Final answer: 15×12=180.
Example 4
15 times what equals 225?
Divide to find the missing factor.
225÷15=15
Final answer: 15×15=225.
Example 5
A meeting runs in 15-minute slots. How many minutes are 14 slots?
15×14=(10×14)+(5×14)=140+70=210.
Final answer: 210 minutes, or 3 hours 30 minutes.
Common Mistakes
Mistake 1: Stopping after the tens part
Where it slips in: Using 15n=10n+5n but writing down only the 10n.
Don't do this: Writing 15×8=80 and forgetting the 5×8=40.
The correct way: Always add both pieces: 80+40=120.
Mistake 2: Ending an odd row in 0
Where it slips in: Recalling a row under time pressure and guessing the units digit.
Don't do this: Writing 15×7=100.
The correct way: Odd multipliers end in 5, even multipliers end in 0. Since 7 is odd, the answer ends in 5: 15×7=105.
Practice Questions
15×3= ?
15×9= ?
15×13= ?
A box holds 15 eggs. How many eggs in 6 boxes?
15× ? = 180
Which is larger, 15×8 or 5×24?
15×20= ?
Answers: 1) 45 2) 135 3) 195 4) 90 eggs 5) 12 6) equal, both 120 7) 300
Frequently Asked Questions
What is 15 times 12?
15×12=180.
What is the easiest trick for the 15 times table?
Multiply by 10 and add half.
Do all multiples of 15 end in 5 or 0?
Yes. Odd multipliers give a 5; even multipliers give a 0.
Is 15 in the 3 times table and the 5 times table?
Yes.
What is 15 times 15?
15×15=225.
What is 15 times 19?
15×19=285.