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Subtraction without and with
Regrouping
Sean owns a bakeshop. Last week, she
sold 342 boxes of cupcakes. This week,
she was able to sell 557 boxes of
cupcakes. What was the increase in
the sale?
How are we going to solve for the
increase?
We can write the number sentence in
two ways.
342+n=557 557-342=n
How can we solve for n?
We use the second sentence.
557-342=n
557 =
342 =
500
300
50
40
7
2
200 10 5 = 2 1 5
+
+
+
+-
+ +
Another way of subtracting numbers.
What is the difference between 4986
and 2354?
Subtraction sentence: 4986-2354=n
What is the difference between 4986
and 2354?
Let us solve it by arranging the
corresponding digits in column.
4 9 8 6
-2 3 5 4
2362
minuend
subtrahend
difference
Subtraction with Regrouping
7634
-2759
How can we subtract numbers without
and with regrouping?
What is the importance of
this/subtraction to your life?
Thank you!

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Subtraction with/without regrouping

  • 1. Subtraction without and with Regrouping
  • 2. Sean owns a bakeshop. Last week, she sold 342 boxes of cupcakes. This week, she was able to sell 557 boxes of cupcakes. What was the increase in the sale? How are we going to solve for the increase?
  • 3. We can write the number sentence in two ways. 342+n=557 557-342=n How can we solve for n? We use the second sentence.
  • 5. Another way of subtracting numbers. What is the difference between 4986 and 2354? Subtraction sentence: 4986-2354=n What is the difference between 4986 and 2354?
  • 6. Let us solve it by arranging the corresponding digits in column. 4 9 8 6 -2 3 5 4 2362 minuend subtrahend difference
  • 7.
  • 10.
  • 11. How can we subtract numbers without and with regrouping? What is the importance of this/subtraction to your life?
  • 12.