Ā Ā Ā Ā Ā Multiples of 10 are numbers that end with a zero.Ā
Multiples of 10
10, 20, 30, 40, 70, 90,
100, 110, 130, 240, 360
Ā Ā Ā Ā Ā Multiples of 100 are numbers that end with two zeros.Ā
Multiples of 100
100, 200, 300, 500, 600,
700, 800, 900, 1,000, 1,100
Let's practice subtracting a few multiples of 10 and 100 together.
976 - 500 = ?
Where do we start? Yes, column form!
Which column should you subtract first?
First, subtract the Ones.
Tip: Subtracting zero from a number doesn't change it.
Next, subtract the Tens.
Lastly, subtract the Hundreds.Ā
So, 976 - 500 = 476.
Ā Ā Ā Ā Ā When you subtract a multiple of 100 from a 3-digit number, the Tens and Ones places don't change.
Now that you know that, can you do solve these in your head?š
777 - 200 = 577 ā
987 - 400 = 587 ā
Just subtract the Hundreds place!
Let's look at an example.Ā
976 - 540 = ?
As always, start with column form.
First, we subtract the Ones.
Subtracting zero doesn't change the number.
So we can move the 6 down.
Next, we subtract the Tens.
Finally, we subtract the Hundreds.
So, 976 - 540 is 436.
Great job.
Now, you're ready to practice your subtraction skills. You'll get better with practice! šāāļø