Compare Expressions: Finding the Sign Between 4+7-3+1-5 and 4+(7-3+1-5)

Question

What is the missing sign?

4+73+15 4+7-3+1-5

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4+(73+15) 4+(7-3+1-5)

Video Solution

Solution Steps

00:00 Determine what is the correct sign?
00:03 Let's calculate each side and then we'll know
00:06 We'll solve from left to right according to proper order of operations
00:20 This is the solution for the left side, now let's calculate the right side
00:23 Always solve parentheses first
00:28 Even within parentheses, we solve from left to right
00:40 This is the calculation for the right side
00:43 And this is the solution to the question

Step-by-Step Solution

First, we solve the exercise:

4+73+15= 4+7-3+1-5 =

According to the rules of the order of operations, we solve the exercise from left to right:

4+7=11 4+7=11

113=8 11-3=8

8+1=9 8+1=9

95=4 9-5=4

Now we solve the exercise:

4+(73+15)= 4+(7-3+1-5) =

According to the rules of the order of operations, we first solve the parentheses and then we will join:

(73+15)= (7-3+1-5)=

(4+15)= (4+1-5)=

(55)=0 (5-5)=0

4+0=4 4+0=4

Therefore:

4=4 4=4

Answer

= =