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## Arithmetic

### Course: Arithmetic>Unit 12

Lesson 4: Subtracting decimals (tenths and hundredths)

# Strategies for subtracting more complex decimals with tenths

Learn all about subtraction of decimals, particularly those in the tenths place. The focus is on various strategies like decomposing whole numbers into tenths and using a number line for visualization.

## Want to join the conversation?

• If want you to subtract 3-1.5 don't you add two zero's to the 3 then add a decimal between 3 and the two zero's? Or is there another way to do it instead of doing that?(adding the two zero's and adding the decimal between the 3 and the zero's)
• Since .5 has only one digit, you only need to add a single zero, 3.0. Or break into parts, (3 - 1) - 1/2 = 2 - 1/2 = 1 1/2.
• why do we line up decimal points when adding and subtracting?
• We line up decimal points and stuff a lot because then we have a critically low chance of mixing up places, like thinking the tenths are in the hundredth, getting the whole thing wrong, and having to restart frustrated. Sorry no one answered you for a long time.
• Tip: Put playback speed to 1.5!
• I just made 2 into 2.0 and it was easier to solve it
• hi i am new here
• If you were subtracting 7.18907 from 11.000009, would this still work? (of course, 7.blah blah blah is just an example)
• Why did he say 1 and 0 tenths is 0 and 10 tenths?