what multiplies to 20 and adds to -12

Multiples of twenty

From a multiplication fact, we ameliorate understand what multiples are. We know that 4 × 20 = 80. This implies eighty is the 4th multiple of xx. Multiples of 20 are obtained basically by adding 20 equally many times to become the answer you want. For example, xx + twenty = 40 or two × twenty = forty.

• Start five multiples of 20: twenty, 40, 60, fourscore and 100
• Prime Factorization of 20: xx = two × 2 × 5

Let united states of america explore more about the multiples of 20 and its properties.

What are the Multiples of 20?

• Multiples of twenty are the production obtained by multiplying the numbers with 20.
• 20 tin can exist repeatedly added to get its successive multiples.
• The 15th multiple of xx is xx x fifteen = 300. This list of multiples is never-ending, nosotros can generate infinite multiples of twenty.
• The multiples of  twenty are likewise the multiples of its factors. The factors of 20 are 1, two, 4, 5, x and 20. 40 is the 2nd multiple of twenty. forty is as well a multiple of 2, four, 5, 10 and twenty.

List of First twenty Multiples of 20

The first xx multiples of 20 are obtained by multiplying 20 with each of the natural numbers from one to xx. Since multiplication is the repeated addition, in one case we find the start multiple, we can add twenty to it to get another multiple and we can go on adding twenty to get the successive multiples.

Multiples of 20
twenty × 1  = 20
20 × 2 = 40
twenty × three = sixty
20 × 4 = 80
20 × five = 100
twenty × 6 = 120
20 ×7 = 140
20×viii = 160
20× 9 = 180
20 × 10 = 200
xx × 11 = 220
20× 12 = 240
20 ×13 = 260
20× fourteen = 280
20 ×15 = 300
20 ×16 = 320
20 × 17 = 340
20 ×18 = 360
twenty × nineteen = 380
twenty× xx = 400

To understand the concept of finding multiples, let us take a few more than examples.

• Multiples of 10 - The first v multiples of 10 are 10, 20, 30, 40, 50
• Multiples of xxx - The first five multiples of 30 are thirty, sixty, 90, 120 and 150
• Multiples of 18 - The first five multiples of eighteen are 18, 36, 54, 72 and 90
• Multiples of 21- The offset five multiples of 21 are 21, 42, 63, 84 and 105
• Multiples of 16 - The outset five multiples of 16 are 16, 32,  48, 64 and 80

Important Notes

• A number can have infinite multiples.
• 20 is an even number, so its multiples volition also exist even.
• All the multiples of 20 will be the multiples of the factors of 20 as well.

Challenging Questions

• Oliver has 2000 notebooks. Can he grouping them in stack of 20 notebooks equally?
• Andrew wants to buy erasers and pencils. The store sells erasers in packs of iii and the pencils in packs of vi. If he wishes to buy the same number of erasers and pencils, what is the minimum number of erasers can he buy?

Multiples of twenty Solved Examples

1. Instance ane:Joe is fond of playing video games. There are certain rules of the game, that he is playing these days. After every level, one gets a credit of xx points. On completing the viii^th level, how many points would he have scored?

   Solution:
   Credit gained after every level =  twenty points
   This implies, credit is gained afterward each level, and scores get added up in multiples of 20.
   Credit gained at 8th level = 8 × 20= 160 points

2. Example 2:Max and Williams, both attend music classes at the same music school. Max attends once every vi days whereas Jack attends the same, once every eight days. Also, there are days, when they run into, following their usual schedule. Suppose that they both met on 3^rd October, so on what date volition they meet again?

   Solution:

   We have to find the first common multiple of 6 and eight to solve our problem.
   Multiples of  vi are 6, 12, 18, 24, 30, 36, 42, 48, ...
   Multiples of 8 are viii, 16, 24, 32, 40, 48, 56, 64, ...
   The common multiples of 6 and 8 are 24, 48, ...
   The to the lowest degree mutual multiple of 6 and 8 is 24.

   Since they starting time met on three^rd October, the date when they meet again for the side by side time is 3 + 24 = 27

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FAQs on Multiples of xx

How practice you find the 25th multiple of 20?

Multiply 20 past 25 and get the 25th multiple as 36 × 25 = 900

How tin can nosotros say that 400 and 600 are the multiples of xx?

xx × 20 = 400 and xx × 30 = 600. 20th multiple of 20 is 400 and 30th multiple of twenty is 600

What are the Offset Five Multiples of 20?

The first v multiples of 20 are xx, 40, lx, eighty and 100.

What 2 numbers give a multiple of 20?

Whatever number multiplied past xx gives a multiple of 20. For example, 20 × 5 = 100 and it is a multiple of 20.

What are mutual multiples of 20 and x?

The multiples of xx are xx, 40, 60, 80, 100, 120, 140 and and so on.
The multiples of ten are x, 20, 30, twoscore, fifty, 60, 70, lxxx, xc, 100 and then on.

The common multiples of 20 and 10 are twenty, 40, 60, 80,100 and so on.

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Source: https://www.cuemath.com/numbers/multiples-of-20/

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