Solve for the Missing Number: ? + 3.3 = 6.7

Fill in the missing value (?):

?+3.3=6.7 ?+3.3=6.7

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Identify which of the following answers is correct
00:03 Insert each of the potential answers into the expression in order to verify which of them is correct
00:07 Use vertical addition to calculate the problem
00:11 Insert one of the answers into the expression and proceed to calculate
00:27 We can see that the first option doesn't fit, let's move on to the second one
00:35 Let's apply the same method as before and proceed to check
00:41 Insert one of the answers into the expression and calculate
00:54 We can see that the second option doesn't fit, let's move on to the third one:
01:03 Once again apply the same method as before and proceed to check
01:10 Insert one of the remaining answers into the expression and calculate
01:24 We can see that the third option doesn't fit, let's move on to the fourth and final one:
01:33 Apply the same method as before and proceed to check
01:41 Insert the remaining answer into the expression and calculate
01:55 We can see that the fourth option fits
02:01 This is the solution

Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

Fill in the missing value (?):

?+3.3=6.7 ?+3.3=6.7

2

Step-by-step solution

To solve this problem, we'll follow these steps:

  • Step 1: Understand the equation ?+3.3=6.7 ? + 3.3 = 6.7 .
  • Step 2: Rewrite the equation to solve for the missing value as ?=6.7−3.3 ? = 6.7 - 3.3 .
  • Step 3: Perform the subtraction to find the value of ?.

Begin by setting up the equation:
 ?+3.3=6.7\, ? + 3.3 = 6.7
To solve for ? ? , we rearrange the equation: ?=6.7−3.3 ? = 6.7 - 3.3

Perform the subtraction:
6.7−3.3=3.4 6.7 - 3.3 = 3.4

Thus, the missing value is 3.4. Hence, ?=3.4 ? = 3.4 .

Therefore, the correct choice from the given options is choice 4: 3.4, which matches our calculated result.

3

Final Answer

3.4

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