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

00:11 First, decide if we need a plus or minus sign.
00:15 Next, calculate each side carefully.
00:19 Then, solve from left to right using the proper order of operations.
00:31 We've solved the left side. Now, let's work on the right side.
00:36 Always start by solving inside the parentheses first.
00:40 Even within the parentheses, solve from left to right.
00:51 Here's how we calculate the right side.
00:54 And there you have it! This is our final solution. Great job!

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

= =