Multiplication Table Of 40
The table of 40 is the list of products you get when you multiply 40 by each whole number in turn. It is one of the easiest large tables, because $40 = 4 \times 10$, so it is the 4 times table with a zero added to every product.
Table Of 40 Up To 10
Multiplication | Product |
|---|---|
$40 \times 1$ | 40 |
$40 \times 2$ | 80 |
$40 \times 3$ | 120 |
$40 \times 4$ | 160 |
$40 \times 5$ | 200 |
$40 \times 6$ | 240 |
$40 \times 7$ | 280 |
$40 \times 8$ | 320 |
$40 \times 9$ | 360 |
$40 \times 10$ | 400 |
Table Of 40 Up To 20
Multiplication | Product |
|---|---|
$40 \times 11$ | 440 |
$40 \times 12$ | 480 |
$40 \times 13$ | 520 |
$40 \times 14$ | 560 |
$40 \times 15$ | 600 |
$40 \times 16$ | 640 |
$40 \times 17$ | 680 |
$40 \times 18$ | 720 |
$40 \times 19$ | 760 |
$40 \times 20$ | 800 |
What Is The Table Of 40 In Words?
Reading the table aloud builds the rhythm before the numbers stick.
One times 40 is 40
Two times 40 is 80
Three times 40 is 120
Four times 40 is 160
Five times 40 is 200
Six times 40 is 240
Seven times 40 is 280
Eight times 40 is 320
Nine times 40 is 360
Ten times 40 is 400
What Is The 40 Times Table?
The 40 times table is repeated addition of 40. Each row adds one more group of forty, so the table answers "how much is forty, added to itself, again and again?"
Built from the ground up, the ladder looks like this:
$40$
$40 + 40 = 80$
$40 + 40 + 40 = 120$
$40 + 40 + 40 + 40 = 160$
Multiplication is the shortcut for this stacking, which is why $40 \times 4$ and "four forties added together" both give 160.
What Are The Multiples Of 40?
The multiples of 40 are the numbers you reach by skip-counting in forties. The first twenty multiples are:
40, 80, 120, 160, 200, 240, 280, 320, 360, 400, 440, 480, 520, 560, 600, 640, 680, 720, 760, 800.
Every entry in the table of 40 is a multiple of 40, and every one is also a multiple of 4, 5, 8, 10, and 20. Because 40 is a multiple of 10, each product ends in zero, and since 40 is even, every product is an even number.
How To Learn The 40 Times Table (Patterns, Not Memorizing)
Bhanzu teaches the few patterns that generate a table rather than drilling its facts into recall. The table of 40 grows straight out of the fours you already know, so you can rebuild any row by reasoning instead of remembering it. Seeing that structure is the number sense that algebra later builds on.
Every pattern below comes from how 40 is composed: $40 = 4 \times 10$, and $40 = 2 \times 20$.
Pattern 1: 40n is the 4 table with a zero appended. Because $40 = 4 \times 10$, the fours (4, 8, 12, 16) become the forties when you append a 0: 40, 80, 120, 160. Take the 4 times table fact and drop a zero on the end, so $40 \times 7$ is $4 \times 7 = 28$, then 280.
Pattern 2: The 40s are the 20s doubled. Since $40 = 2 \times 20$, every multiple of 40 is double the matching multiple of 20, so you can reuse the 20 times table. For $40 \times 6$: $20 \times 6 = 120$, doubled is 240.
Pattern 3: Every product ends in zero. Because 40 is a multiple of 10, no product ever ends in a nonzero digit, so an answer like 285 is instantly wrong.
Pattern 4: Split the multiplier by place value. A large row decomposes the way the number is written. For $40 \times 13$, read 13 as $10 + 3$, so $40 \times 13 = (40 \times 10) + (40 \times 3) = 400 + 120 = 520$, the distributive idea you meet again as $40(10 + 3)$ in algebra.
How Do You Read And Use The Table Of 40?
Read each row left to right: $40 \times 6 = 240$ is "forty multiplied six times gives two hundred forty." The first number is the group size, the second is the count of groups, and the product is the total.
To learn it, recite the fours and add a zero as you go, then quiz yourself in a shuffled order so you are recalling facts rather than reciting a chant. If a row slips, rebuild it from the fours you already trust.
Where Does The Table Of 40 Appear?
Forty is the math of the working week and the road. A standard full-time schedule is 40 hours, so weekly pay at an hourly rate scales on this table. Many speed-limit zones are set at 40 km/h, so distance covered over several hours steps up in forties, and cartons that pack goods in fixed lots of 40 count their totals straight off this table.
Solved Examples Of The Table Of 40
Example 1
What is $40 \times 7$?
Use the fours-plus-zero: $4 \times 7 = 28$, then add a zero.
$40 \times 7 = 280$
Final answer: $40 \times 7 = 280$.
Example 2 (Wrong path first)
A box holds 40 screws. How many screws are in 9 boxes?
Wrong attempt. The rusher reads $40 \times 9$ as just $4 \times 9$ and stops at 36.
Why it breaks. Nine boxes of forty screws each must hold far more than a single box, so 36 cannot be right, since it is less than even one box's 40.
Correct. Take $4 \times 9 = 36$, then add the zero that belongs to the 40.
$40 \times 9 = 360$
Final answer: 360 screws.
Example 3
Find $40 \times 12$.
Split the multiplier: $40 \times 10 = 400$ and $40 \times 2 = 80$.
$400 + 80 = 480$
Final answer: $40 \times 12 = 480$.
Example 4
$40 \times {?} = 600$.
Divide to find the missing factor: $600 \div 40 = 15$.
Final answer: $40 \times 15 = 600$.
Example 5
A worker is paid for 40 hours a week. How many hours across 6 weeks?
$40 \times 6 = 240$
Final answer: 240 hours.
What Are Common Mistakes With The Table Of 40?
Mistake 1: Dropping the zero from the 4-table pattern
Where it slips in: Using the fours-plus-zero method but forgetting to append the zero.
Don't do this: Writing $40 \times 6 = 24$ (the bare $4 \times 6$, no zero).
The correct way: Take $4 \times 6 = 24$, then add one zero, giving $40 \times 6 = 240$.
Mistake 2: Confusing the table of 40 with the table of 4
Where it slips in: Under time pressure, the first instinct is to answer $40 \times 8$ with the $4 \times 8 = 32$ fact and stop there.
Don't do this: Answering $40 \times 8 = 32$.
The correct way: $40 \times 8 = 320$. The 32 is right; the missing zero is the place value that turns it into the table of 40.
Practice Questions On The Table Of 40
$40 \times 4 = {?}$
$40 \times 9 = {?}$
Fill in the blank: $40 \times {?} = 480$.
A crate holds 40 apples. How many apples in 6 crates?
$40 \times 11 = {?}$
Which is larger, $40 \times 7$ or $40 \times 6$?
$40 \times 20 = {?}$
A worker does 40 hours a week. How many hours in 7 weeks?
Answers: 1. 160 2. 360 3. 12 4. 240 5. 440 6. $40 \times 7 = 280$ is larger 7. 800 8. 280 hours.
Conclusion
The table of 40 is the fours wearing an extra zero: take a four-times fact, drop a zero on the end, and confirm the answer lands on a zero every time. To take this further with a teacher, explore mental maths for kids sessions, a one-on-one elementary math tutor, or the pattern-driven speed math programme.
Read More
Tables from 1 to 20 - every chart from 2 to 20 in one place.
8 times table - a factor of 40, since $8 \times 5 = 40$.
Table of 30 - a close neighbour, the threes plus a zero.
Mental math tricks - pattern-based shortcuts for faster arithmetic.
Math is Fun — Multiplication Tables - printable charts and interactive practice.
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