# Subtracting decimals #### All in One Place

Everything you need for JC, LC, and college level maths and science classes. #### Learn with Ease

We’ve mastered the national curriculum so that you can revise with confidence. #### Instant Help

0/1
##### Intros
###### Lessons
1. Introduction to Subtracting Decimals:
How to subtract decimals with base ten (block) models
0/15
##### Examples
###### Lessons
1. Exchanging practice for decimals with block models
Practice exchanging to make more smaller place values. Use base ten (block) models to help.
1. 4 ones + 6 tenths = ___ ones + ___ tenths 2. Exchange 1 one for 10 tenths:
8 tens + 0 ones + 3 tenths = ___ tens + ___ ones + ___ tenths 3. Exchange 1 tenth for 10 hundredths:
9 tenths + 1 hundredth = ___ tenths + ___ hundredths 4. Exchange 1 tenth for 10 hundredths:
2 ones + 0 tenths + 7 hundredths = ___ ones + ___ tenths + ___ hundredths 2. Subtracting decimal block models
Subtract the decimal block models. Give the answer in standard form.
1. 2. 3. 4. 3. Subtracting decimals on a grid
Subtract the decimals by lining up on the grid.
1. 18.7 - 2.3 2. 57.98 - 8 3. 9.2 - 5.4 4. 78.03 - 9.56 4. Subtracting decimals and rounding decimal differences
1. 41.2 - 8.43
2. 62.04 - 31.03
3. 675.92 - 324.7
0%
##### Practice
###### Free to Join!
StudyPug is a learning help platform covering math and science from grade 4 all the way to second year university. Our video tutorials, unlimited practice problems, and step-by-step explanations provide you or your child with all the help you need to master concepts. On top of that, it's fun - with achievements, customizable avatars, and awards to keep you motivated.
• #### Easily See Your Progress We track the progress you've made on a topic so you know what you've done. From the course view you can easily see what topics have what and the progress you've made on them. Fill the rings to completely master that section or mouse over the icon to see more details.
• #### Make Use of Our Learning Aids   ###### Practice Accuracy

See how well your practice sessions are going over time.

Stay on track with our daily recommendations.

• #### Earn Achievements as You Learn   Make the most of your time as you use StudyPug to help you achieve your goals. Earn fun little badges the more you watch, practice, and use our service.
• #### Create and Customize Your Avatar   Play with our fun little avatar builder to create and customize your own avatar on StudyPug. Choose your face, eye colour, hair colour and style, and background. Unlock more options the more you use StudyPug.
###### Topic Notes

In this lesson, we will learn:

• How to subtract decimal numbers using base ten (block) models
• That subtracting decimal numbers is the same as subtracting whole numbers, which involves lining up the right place values and exchanging

Notes:

• To subtract decimals with base ten (block) models:
• Remember the three types of blocks used to represent the ones, tenths, and hundredths place values
• "One whole" or hundred block = ones place value
• Column (stick or rod) = tenths place value
• Single square = hundredths place value • A subtraction statement is made of: minuend - subtrahend = difference
• Cross out the blocks that you are subtracting (subtrahend from the minuend), until you've crossed out all matching pairs (subtrahend all crossed out).
• Exchange (or "borrow") from a bigger block if you don't have enough blocks to cross out. One big block can be split into 10 of the next smaller type of block (next place value). • To subtract decimals, line up the decimal point to make sure you are adding the right place values in the same columns. Exchange (borrow) whenever necessary.
• Sometimes, you will have to write one or more extra zeroes to a number after the decimal point (trailing zeroes) when the minuend/subtrahend don't have the same number of place values.