Calculate (+0.18) + (+0.88): Adding Positive Decimals

Q: Why are there parentheses around positive numbers?

The parentheses help clarify the sign of each number. $ (+0.18) $ just means positive 0.18, which is the same as regular 0.18.

Q: Do I need to keep the plus signs when I calculate?

No! You can simplify $ (+0.18) + (+0.88) $ to just $ 0.18 + 0.88 $ since both numbers are positive.

Q: How do I add decimals correctly?

Line up the decimal points! Write them vertically:0.18+ 0.88______1.06

Q: Why isn't the answer 0.7?

That would be $ 0.88 - 0.18 = 0.7 $ (subtraction). Since we're adding two positive decimals, the result must be larger than both original numbers.

Q: What if I forget to align the decimal points?

You might get the wrong answer! Always double-check that your decimal points are lined up vertically, just like when adding whole numbers with place values.

Decimal Addition with Positive Signs

$(+0.18)+(+0.88)=$

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations

00:07 Let's solve a math problem together.

00:10 First, find point zero point one eight on the number line.

00:15 Next, move to the right along the positive direction.

00:25 You can use long addition to add numbers here.

00:28 Remember to carry over any extra numbers.

00:35 And that's how we find the solution. Great job!

Step-by-step written solution

Follow each step carefully to understand the complete solution

Understand the problem

$(+0.18)+(+0.88)=$

Step-by-step solution

Let's remember the rule:

$+(+x)=+x$

Now let's write the exercise in the following way:

$0.18+0.88=$

Since we are multiplying two positive numbers, the result will be positive.

Therefore:

$0.18\\+0.88\\1.06$

Final Answer

$1.06$

Key Points to Remember

Essential concepts to master this topic

Sign Rule: +(+x) = +x, so positive signs can be removed
Technique: Align decimal points: 0.18 + 0.88 = 1.06
Check: Sum should be greater than both addends: 1.06 > 0.88 > 0.18 ✓

Common Mistakes

Avoid these frequent errors

Confusing addition with subtraction when seeing parentheses
Don't think (+0.18) + (+0.88) means subtraction = 0.7! The parentheses just show positive signs, not operations. Always recognize that positive plus positive equals a larger positive number.

Practice Quiz

Test your knowledge with interactive questions

a is negative number.

b is negative number.

What is the sum of a+b?

FAQ

Everything you need to know about this question

Why are there parentheses around positive numbers?

The parentheses help clarify the sign of each number. $(+0.18)$ just means positive 0.18, which is the same as regular 0.18.

Do I need to keep the plus signs when I calculate?

No! You can simplify $(+0.18) + (+0.88)$ to just $0.18 + 0.88$ since both numbers are positive.

How do I add decimals correctly?

Line up the decimal points! Write them vertically:

0.18
+ 0.88
______
1.06

Why isn't the answer 0.7?

That would be $0.88 - 0.18 = 0.7$ (subtraction). Since we're adding two positive decimals, the result must be larger than both original numbers.

What if I forget to align the decimal points?

You might get the wrong answer! Always double-check that your decimal points are lined up vertically, just like when adding whole numbers with place values.

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