Last updated on May 26th, 2025
A times table is a chart that shows the results of multiplying a number with whole numbers. Learning the times table will help kids understand multiplication. We use an algebraic system to define multiplication operations, construction, estimation, schoolwork, exams, etc. In this topic, we will learn about the table of 840.
Multiplication was used by people over 4000 years ago. Babylonians were considered the first to use it in clay tablets. Multiplication tables are created as a result of people's search for easier ways to solve problems. Learning multiplication tables has numerous advantages. Kids can answer quickly if they know their times table. It also helps to enhance their understanding skills. Being more familiar with the tables improves children's memory and confidence.
Multiplying the whole number (1, 2, 3, 4, 5, and so on) by 840 gives the product of the multiplication table of 840.
Here are some examples:
840 × 1 = 840
840 × 2 = 840 + 840 = 1,680
840 × 3 = 840 + 840 + 840 = 2,520
840 × 4 = 840 + 840 + 840 + 840 = 3,360
840 × 5 = 840 + 840 + 840 + 840 + 840 = 4,200
840, 1,680, 2,520, 3,360, 4,200, and so on are multiples of 840.
The 840 times table chart shows the multiples of 840. Every result in the chart is obtained by multiplying 840 with other whole numbers, like 1 to 10, and so on.
For example:
840 × 10 = 8,400
840 × 11 = 9,240
840 × 12 = 10,080, and so on.
TABLE OF 840 (1-10) | |
---|---|
840 x 1 = 840 |
840 x 6 = 5040 |
840 x 2 = 1680 |
840 x 7 = 5880 |
840 x 3 = 2520 |
840 x 8 = 6720 |
840 x 4 = 3360 |
840 x 9 = 7560 |
840 x 5 = 4200 |
840 x 10 = 8400 |
TABLE OF 840 (11-20) | |
---|---|
840 x 11 = 9240 |
840 x 16 = 13440 |
840 x 12 = 10080 |
840 x 17 = 14280 |
840 x 13 = 10920 |
840 x 18 = 15120 |
840 x 14 = 11760 |
840 x 19 = 15960 |
840 x 15 = 12600 |
840 x 20 = 16800 |
Understanding the multiplication table of 840 can be challenging because of the larger number involved. But with tips and tricks, it becomes easier. Let’s look into some:
Breaking the numbers into smaller parts will make it easy to learn multiplication.
For example:
840 × 4
Here, 840 can break into 800 + 40
(800 × 4) + (40 × 4) = 3,200 + 160
= 3,360.
On one side of the flashcard, write the multiplication problems.
For example:
Front: 840 × 3
Back: 2,520.
The unit digits in the 840 times table repeat every five multiples.
For example:
The unit digits repeat in the cycle: 0, 0, 0, 0, 0. After every five multiples, the cycle restarts.
While working on the tables of 840, it's common for kids to make some errors. Here are some common mistakes that kids make and tips on how to avoid them.
A community center organizes a weekly fitness class attended by 840 people. If each person needs 1 yoga mat, how many yoga mats are required in total?
840 yoga mats.
Since each attendee needs 1 yoga mat and there are 840 attendees, the total number of yoga mats needed is simply 1 mat per person, resulting in 840 yoga mats. For example: 840 × 1 = 840.
A company decides to distribute bonus vouchers to its employees. Each voucher is worth 840 units. If the company gives out 7 vouchers, how much total value is distributed?
5880 units.
To find the total value of the distributed vouchers, multiply the value of one voucher (840 units) by the number of vouchers (7):
840 × 7 = 5880 units.
A library has a capacity to house 840 books per section. If there are 12 sections in the library, what is the total capacity of books the library can hold?
10,080 books.
The total capacity is calculated by multiplying the number of sections by the capacity per section:
840 × 12 = 10,080 books.
A manufacturing plant produces 840 gadgets every day. How many gadgets will be produced in 15 days?
12,600 gadgets.
To determine the total production over 15 days, multiply the daily production by the number of days:
840 × 15 = 12,600 gadgets
A large event requires 840 chairs, each to be cleaned for 3 hours. What is the total number of chair-cleaning hours required for the event?
2520 hours.
The total chair-cleaning hours is found by multiplying the number of chairs by the hours per chair:
840 × 3 = 2520 hours.
Seyed Ali Fathima S a math expert with nearly 5 years of experience as a math teacher. From an engineer to a math teacher, shows her passion for math and teaching. She is a calculator queen, who loves tables and she turns tables to puzzles and songs.
: She has songs for each table which helps her to remember the tables