10 + 0 =10 ?
0, 2, 4, 6, 8, 10...Follow this pattern with all the numbers.
In base 10, all numbers whose last digit is a 5 or a 0
2, 3, 5, 7
Tidy numbers are numbers that end with a 0 (10 and multiples of 10)
10 + 0 =10 ?
The common multiples of 2 and 5 are 10, 20, 30, 40, etc.In detail:A common multiple is a number divisible by both (or all) numbers: 2 and 5, here.Knowing that all numbers divisible by 2 have a 0, 2, 4, 6, or 8 in the ones place combined with the knowledge that all numbers divisible by 5 end with 0 or 5 (excluding 0 in both cases), we can say the only multiples of each number that are common to both are numbers that end with 0.Another way of analyzing this problem is to say that both 5 and 2 are factors. 10 is clearly a multiple of 5 and 2 because 2(5)=10. Any number divisible by 10 is thus also divisible by 2 and 5. All numbers divisible by 10 end in 0. Thus, a number ends in 0 if and only if it is divisible by 2 and 5.Answer: Common multiples of 2 and 5 end with zero.
55
0, 2, 4, 6, 8, 10...Follow this pattern with all the numbers.
In base 10, all numbers whose last digit is a 5 or a 0
The numbers 20 and 40 are both multiples of 10, as they can be divided evenly by 10. They are also both even numbers, ending in 0. Additionally, both numbers are divisible by 5, as they end in 0.
2, 3, 5, 7
All even numbers (numbers evenly divisible by 2) will end with 2, 4, 6, 8, or 0.
Tidy numbers are numbers that end with a 0 (10 and multiples of 10)
There are a huge number of combinations of 5 numbers when using the numbers 0 through 10. There are 10 to the 5th power combinations of these numbers.
To write it out: -10 + -9 + ... + 9 + 10 = 0. It's pretty easy to just add it out or use a calculator. However, there is a simpler, more logical solution. We must realize that additive inverses add to 0. Meaning -10 + 10 = 0 - 9 + 9 = 0 And so on. Note that all numbers except the 0 will be reduced to 0. All of these 0s equal 0.
That is a true statement.