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Table of 15

Table of 15

Edited By Team Careers360 | Updated on Jan 27, 2023 03:54 PM IST

Introduction

The multiplication table for the entire number 15 that also includes its multiples is known as the "table of 15." The 15-times table shows how many times the number 15 has been added to itself. For instance, 15 times 3 is equivalent to 15 added to itself three times, which equals 45 that is (15 \times 3 = 15 + 15 + 15).

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To tackle complex multiplication problems, pupils must be able to recall the table of 15 at their fingertips. The foundation of mathematical computations is found in the tables from 2 to 15. Students must therefore improve their problem-solving skills by memorising these tables. Math's fundamental notion is multiplication.

Mathematicians use multiplication in a wide variety of applications. A student will benefit from learning multiplication by being able to do computations in higher-level classes and in the real world more quickly. Therefore, it is suggested that children learn multiplication tables from 1 to 20. We will study the multiplication table for 15 here. However, are there any shortcuts for learning table 15? Let's investigate.

Multiplication Before The Modern Era

The Babylonians utilised the earliest known multiplication tables roughly 4,000 years ago. But they started from a base of 60. The Chinese decimal multiplication table on strips of bamboo, which dates to around 305 BC, during China's Warring States period, is one of the first tables with a base of 10.

On Napier's bones, there is a "Table of Pythagoras."- Pythagoras, an ancient Greek mathematician, is sometimes credited with creating the multiplication table (570–495 BC). In various languages, including French, Italian, and Russian, as well as on occasion in English, it is also known as the Table of Pythagoras. The oldest surviving Greek multiplication table is on a wax tablet from the first century AD that is currently kept in the British Museum. The Neopythagorean mathematician Nichomachus (60–120 AD) included a multiplication table in his Introduction to Arithmetic.

According to a 98-column multiplication table authored by Victorius of Aquitaine in 493 AD, the rows were a list of numbers beginning with 1,000 and going down by hundreds to one hundred, then by tens to ten, then by ones to one, and finally by the fractions down to 1/144.

15-Table Chart

One of the most popular and simple multiplication tables is the 15-times table. The 15 times table is the easiest to memorise of all the multiplication tables, which will aid in making quick calculations in mathematics.

  • 1 \times 15 = 15 1674814234397

  • 2 \times 15 = 30 1674814234572

  • 3 \times 15 = 45 1674814232825

  • 4 \times 15 = 60 1674814234735

  • 5 \times 15 = 75 1674814232957

  • 6 \times 15 = 90 1674814233417

  • 7 \times 15 = 105 1674814233137

  • 8 \times 15 = 120 1674814234870

  • 9 \times 15 = 135 1674814234237

  • 10 \times 15 = 150 1674814233826

What Does The Multiplication Table Of 15 Say?

The first 10 multiples of 15 are essentially shown in the multiplication table for the number 15. You see, multiplying any integer by 15 will get us to the necessary outcomes instead of laboriously and redundantly adding any number 15 times. For a better understanding, let's look at the samples provided below.

6 times 15 equals 90. The identical outcome will be obtained if we attempt to add 15 six times: 15 + 15 + 15 + 15 + 15 + 15 = 90.

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In the same way, the result of multiplying 7 by 15 is 105.

4 \times 15 = 60, 8 \times 15 = 120, etc.

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How To Remember Table Of 15?

Even though the 15 times table is simple to memorise, there are some strategies and tips that can help pupils pick it up quickly.

  • Either 0 or 5 are the digits at the unit position.

  • Two consecutive odd numbers are followed by two consecutive even numbers in the tens place digits. For instance, the first two multiples of 15 and 30 are odd (1 and 5) while the next two multiples of 45 and 60 are even (i.e.,4 and 6).

  • To obtain the multiples of 15, skip count to 15.

Quick Guide To 15 Times Tables

If you're seeking a shortcut to learning the table of 15, keep reading because we've covered some information that will make learning the table of 15 pleasant and enable you to quickly tackle challenging maths issues. When you know the 15 tables by heart, fractions, multiplication, and division become simpler.

It's crucial to keep in mind that the positions 5 and 0 in the table of 15 correspond to the alternate multiplier. (15, 30, 45, 60,..)

Remember the formula: The series of the table of 15 consists of two odd numbers, followed by two even numbers. (1, 3, 4, 6, 7, 9, 10, 12, 13, 15,...)

Read the following table to better comprehend the trick of 15 tables.

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Games For Learning 15 Times Tables

Game-based learning makes it simple for kids to grasp a topic. The following two entertaining games make learning the 15 times table enjoyable.

  • A Mystery Image: This vibrant game combines creativity with maths education. To discover the mystery image in this game, children must properly answer 15 times table questions. The parent or teacher shows a portion of the picture for each correct response. Kids that participate in these enjoyable learning games find it relatively simple to master the multiplication table for 15 numbers.

  • Music Boxes: Play a round of musical chairs to get everyone in the class moving while they study the 15 times table. Put together a gathering of children and play some music. When the music stops, the children must locate a chair to sit in. Every time they sit down, they must respond to questions based on the multiplication table for 15. The youngster loses their turn if they don't respond appropriately, or you can assign them a silly assignment as punishment.

Frequently Asked Questions (FAQs)

1. How Do I Learn the 15 Times Table?

The fact that the one's place always follows the pattern of 5-0, that is 15 \times 1 = 15, 15 \times 2 = 30, and so on, is one of the strategies for remembering the 15 times table.

2. What does 15's square root equal?

The square root of 15 is equal to 3.87298.

3. What are the factors of the number 15?

1, 3, 5, and 15 make up the number 15.

4. Is the number 15 a prime?

The number 15 is not a prime.

5. What is the 15-cube value?

The cube of 15 is 3375.  (15 \times 15 \times 15)

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