Which is another way to check the sum of 52 + 23 + 10 + 78

davfar334p47luq   ·   10.01.2020 09:31
ANSWER(S)
answered: TH3L0N3W0LF
26.06.2019 10:20

throw the computer

step-by-step explanation:

Taking this quiz i’m stuck on this one me out
answered: BigDaddy1220
25.06.2019 22:00

answer: the answer is 30 miles per hour.

ft/s -> mphmph = ft/s 1.466667mph = 44 divided by 1.466667mph = 30.00000

- r3ktforgood ☕

answered: lindalu
25.06.2019 08:00

the answer is b.

step-by-step explanation:

by the trigonometric ratio tangent, tangent equals opposite divided by adjacent.

therefore, tan(50) equals ac/3

multiply each side by 3 to get: ac=3tan(50)

the answer is b.

answered: alexabdercmur
08.10.2020 07:56
First, you would do the math. 
52 + 23 + 10 + 78 = 163

Now, using the process of elimination and common sense, we can narrow down the answer to A. All you have to do is check it. 
78 + 10 + 23 + 52 = 163

So, 78 + 10 + 23 + 52 = 52 + 23 + 10 + 78

Your answer would be A. 78 + 10 + 23 + 52 
answered: amadileaks
08.10.2020 07:56
A simple method of checking the sum of arithmetic problems is by using the "digit sum" method. The digit sum can be obtained by adding the digits of a number together, until you get a single-digit number. In case you get a double-digit number, just add them again until you get a single digit number.

Let's try it with an example.

Given the numbers 143, 876, and 534, their digit sums would be:
144 : 1 + 4 + 3 = 9 (same as 0)
876 : 8 + 7 + 6 = 21; 2 + 1 = 3
534 : 5 + 3 + 4 = 12; 1 + 2 = 3

Getting the digit sum is actually getting the number modulo 9, which in other words, is the remainder of that number divided by 9. Since you now have an understanding of the digit sum, how can it be used to check the sum of the problem above?

By comparing the sum of the digit sums of the addends and the digit sum of the obtained sum, you can determine if the arithmetic process was done correctly. Let us do this below:

104 + 34 + 228 + 877 = 1243

Using the digit sum method:

104 : 1 + 0 +4 = 5
34 : 3 + 4 = 7
228 : 2 + 2 + 8 = 12; 1 + 2 = 3
877 : 8 + 7 + 7 = 22; 2 + 2 = 4

adding the digit sums of the addends:

5 + 7 + 3 + 4 = 19; 1 + 0 = 1

Comparing with the digit sum of the sum (1243):

1 + 2 + 4 + 3 = 10; 1 + 0 = 1 (OK)

As we can see, the digit sums are the same, so we can say that the arithmetic process has been done correctly.
answered: lillybritn
08.10.2020 07:56

The answer would be D. 78 + 10 + 23 + 52.

answered: luna163
08.10.2020 07:56

Step-by-step explanation:

go to google or use a calculated

answered: kate460
08.10.2020 07:56

For number 3 it is D

answered: michelle7511
08.10.2020 07:56

by adding the numbers in a different order would be a way to check so the answer is:

C. 877 + 228 + 34 + 104

answered: sunny644
08.10.2020 07:56

By adding 104+34 and then 228+877, Then adding both of the results and finally subtracting the answer by one of the factors.

Explanation:

Which will be...

104+34=138

228+877=1,105

Then add them...

138+1,105=1,243

Finally, subtract your answer by one of the factors...

1,243-1,105

Which will result as 138. Which is also one of the factors you added earlier, that's basically what your looking fro when checking and subtraction and/or addition problem.

answered: aahneise02
08.10.2020 07:56

A. 78 + 10 + 23 + 52

Step-by-step explanation:

We can solve the problem by using the commutative property: "in an addition, changing the order of the operands does not change the result.

The original addition is 52 + 23 + 10 + 78. We see that option A is exactly the same addition, only the order of the numbers has been changed:

78 + 10 + 23 + 52

Therefore, the two additions are equivalent.

answered: almighty196
08.10.2020 07:56
52+23=75
10+78=88 
88+75=163
that's one way 
03.08.2020 23:07
Well first off those numbers add up to 163.

A way to check this is to add 52 with 23 which is 75 then add 78 by 10 which is 88 now add 75 with 88 which is 163

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