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5th grade
Course: 5th grade > Unit 3
Lesson 1: Subtracting decimals introSubtracting decimals
We'll start with simple problems like 0.9 - 0.8 and build to more complex problems like 12.6 - 8.89.
This article is designed to help you learn how to subtract decimals by letting you jump in and give it a try without being shown how to do it first.
The problems go from easy to more difficult, and along the way there are examples and explanations in case you get stuck. If you get confused, just think of it as a chance to learn!
Let's start by subtracting tenths.
Problem set 1:
Beautiful! Let's move on to problems with whole numbers and tenths.
Problem set 2:
Excellent! Let's move on to work with some larger numbers.
Problem set 3:
Rockin'! Let's move on to some more difficult problems with whole numbers and tenths.
Problem set 4:
Cool! Now let's subtract hundredths.
Problem set 5:
Great! Let's move on to problems with whole numbers, tenths, and hundredths.
Problem set 6:
Rockin'! Now we're ready to use bigger numbers.
Problem set 7:
Sweet! Let's finish with some more challenging problems.
Problem set 8:
Want to join the conversation?
- this is confuseing(19 votes)
- What part is confusing?(10 votes)
- do we use math every day?😐(38 votes)
- yes, example: if you need 5 apples for a pie but you want to double the amount to make two pies... how many do you have to get? (that was just an easy example)(42 votes)
- This is kinda easy for me but for some people it could be confusing and hard.(28 votes)
- I’m glad this is easy for you.
The likely cause of confusion for some people, when subtracting decimals, is failing to line up decimal points first and/or failing to put in zeros for missing digits.(10 votes)
- please upvote me I want a badge(22 votes)
- Read This Now
I've caught people saying "This is easy" Some people are bad at math and might have a unsuppoortive brain, please don't say that because someone might need help so instead of saying "this is easy" help them! So instead of an unsuppoortive brain turn it to a positive brain, I hope you understand.(22 votes)- i agree because we are old enough to know that...(5 votes)
- Upvote if you like cheese(24 votes)
- I don't get that 1.0 - 0.59 is 0.41. How is it o.41?(8 votes)
- Because the 1.0 can also be expressed as 1.00
If you view it that way, as
1.00
-0.59
It will equal 0.41
The steps are,
First you subtract the 0 in the hundredth's place by the 9 in the other's hundredth's place. But 0 is less than 9, so you need to borrow from the tenth's place.
Unfortunately, how do you borrow? The value there is 0 as well, and there isn't really anything for you to borrow.
Fortunately, the one's place has a 1. This means the tenths place can borrow from that for a "10", and afterward the hundredth's place can borrow from the 10 in the tenth's place.
10 - 9 =1
9 - 5= 4
0 - 0 = 0
So you end up with 0.41(18 votes)
- what would happen if math wouldn't be in are life(14 votes)
- are there negative decimals?(11 votes)
- Yes, there are negative decimals. Every real positive number has an opposite that is negative.
These are valid negative number: -8.32; -5 3/4; -0.05(11 votes)
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