Solve the Decimal Equation: Finding the Missing Number in 0.2 + ? = 0.6

Fill in the missing value (?):

0.2+?=0.6 0.2+?=0.6

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Choose the correct answer
00:03 Let's mark each option and check
00:10 Let's use long division for calculation
00:15 Let's calculate and mark
00:33 We see that the first option doesn't fit, let's move to the second
00:39 Again let's use the same method and check
01:03 We see that the second option doesn't fit, let's move to the third:
01:12 Again let's use the same method and check
01:35 We see that the third option fits, let's move to the fourth:
01:43 Again let's use the same method and check
02:06 We see that the fourth option doesn't fit
02:16 And this is the solution to the question

Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

Fill in the missing value (?):

0.2+?=0.6 0.2+?=0.6

2

Step-by-step solution

To solve this problem, we will use basic subtraction:

  • Step 1: Restate the given equation: 0.2+?=0.60.2 + ? = 0.6.
  • Step 2: To find the missing number, subtract the known addend 0.20.2 from the total 0.60.6.
  • Step 3: Perform the subtraction: 0.6−0.2=0.40.6 - 0.2 = 0.4.

After performing the calculation, we find that the missing value is 0.40.4. Therefore, the equation 0.2+0.4=0.60.2 + 0.4 = 0.6 is correct.

Therefore, the solution to the problem is 0.40.4.

3

Final Answer

0.4

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