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GenaCL600 [577]
3 years ago
15

give an example of addition problem in which you would and would not group the addends differently to add

Mathematics
2 answers:
aleksandrvk [35]3 years ago
3 0
An <u>example of a problem</u> where I <em>would not</em> group the addends differently is:

3+2+4.

An <u>example of a problem</u> where I <em>would</em> group the addends differently is:

2+5+8.

Explanation:

In the <u>first problem</u>, I would not group the addends differently before adding.  This is because I cannot make 5 or 10 out of any of the numbers.  We group addends together to make "easier" numbers for us to add, such as 5 and 10.  If we cannot do that, there is no reason to regroup the addends.

In the <u>second problem</u>, I would regroup like this:
2+8+5

This is because 2+8=10, which makes the problem "easier" for us to add.  Since we can get a number like this that shortens the process, we can regroup the addends.
KATRIN_1 [288]3 years ago
3 0
In a problem like 1+1+1, I would not group the addends differently. This is because, no matter which way you place the ones, you will always be adding 1+1+1.

In a problem like 3+5+7, I would group the addends differently (3+7+5). This is because, in the first problem you would first add together 3+5 to get 8, and then you would add 8+7 to get 15. However, if you were to add 3+7 first, you would get 10. 10+5 is much easier to add than 8+7.
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Y = -2x2 + 10 y = -2x – 2
34kurt

Answer:

x = 6

y = - 14

Step-by-step explanation:

\left \{y=-2x2 + 10y} \atop {y=-2x -2}} \right.

  1. -2x × 2 + 10 = - 2x - 2
  2. x = 6
  3. y = -2 × 6 - 2 = - 14
4 0
3 years ago
Read 2 more answers
CAN YOU HELP ME!
Nat2105 [25]

Answer:

B) 15/(9+(-9))

Step-by-step explanation:

Be careful of the parentheses because if you just write out 15/9+(-9),

it's technically, saying that 15/9+(-9)=5/3+(-9)=5/3-9, and that's different from what you want to express, mathematically.

3 0
2 years ago
The difference of six times a number and 7 is -49
gtnhenbr [62]
Greetings!

"<span>The difference of six times a number and 7 is -49"...

In number and variables, this would be:
</span>6x-7=-49&#10;
<span>
Add 7 to both sides.
</span>(6x-7)+7=(-49)+7
<span>Simplify.
</span>6x=-42
Divide both sides by 6.
(6x)/6=(-42)/6
Simplify.
x=-7

Hope this helps.
-Benjamin
5 0
4 years ago
The students claims that the model accurately describes the motion of the galaxies in the universe what evidence from the model
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Answer: As the dough rises, the distance between the raisins increases, indicating that the galaxies are moving apart.

Step-by-step explanation:

6 0
2 years ago
What is the value of 10P10
storchak [24]
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7 0
3 years ago
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