Calculate the Sum: 8.5 + 5.2 + 8.4 Addition Problem

Solve the following exercise:

8.5+5.2+8.4= ? 8.5+5.2+8.4=\text{ ?}

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Solve
00:03 Let's break down each number into its whole number and decimal point
00:30 We'll use the commutative property to arrange the exercise in a convenient way to solve
00:56 Let's solve one operation at a time separately
01:12 Let's continue solving
01:21 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

Solve the following exercise:

8.5+5.2+8.4= ? 8.5+5.2+8.4=\text{ ?}

2

Step-by-step solution

First we will break down each of the factors in the exercise into a whole number and its remainder:

8+0.5+5+0.2+8+0.4= 8+0.5+5+0.2+8+0.4=

Now we'll combine only the whole numbers:

8+5+8=13+8=21 8+5+8=13+8=21

Then we'll calculate the remainder:

0.5+0.2+0.4=0.7+0.4=1.1 0.5+0.2+0.4=0.7+0.4=1.1

Finally, we are left with the following:

21+1.1=22.1 21+1.1=22.1

3

Final Answer

22.1

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