Answer:
3
Step-by-step explanation:
Hmm this looks tough, but let's go through together.
Do you remember the sequence of calculating ? We need to calculate what is inside the ( ) first, the one within all other ( ).
In this problem, we calculate (3 -2) first.
3-2 = 1
so from 7×(3-2), we now have 7×1
Next we calculate the next ( ), which is now ( 7- 7×1+5 ).
In a calculation which there is both multiplication(×), addition(+) and minus(-), we calculate the multiplication first.
In this problem, it is 7×1 = 7
Now we have
( 7 - 7 +5 ). In this calculation there is no multiplication (×), or division (÷), so let's calculate from left to right.
( 7- 7 + 5) = ( 0 +5 ) = 5
Ok, we have solved the toughest part, which is (7-7*(3-2) +5), now equals to 5
Let's place 5 in the problem :
4 - 5 + 4
Normally, we can do from left to right again. But in this one, if we calculate 4-5, it's quite baf, because 5 is biger than 4.
So what we can do is to change the position of numbers, but remeber every number goes with the sign before it. That means if we move 5, we need to keep the - before 5 as well. The same is applied to 4.
So I can move numbers and I have this :
4 + 4 - 5
Now we can do it normally.
4+4-5= 8 - 5 =3
HOPE YOU LEARN WITH JOY AND HIGH GRADES
