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Second Grade: Subtraction Strategies To Know in

The document lists 7 subtraction strategies to help children in second grade with subtraction, including counting back, using a place value chart, a hundreds chart, decomposing and composing numbers, writing subtraction horizontally or vertically, and chunking numbers into expanded form. These strategies can help children solve subtraction equations easily by breaking the problem down or representing it visually in different ways. The place value chart, decomposing and composing, and chunking strategies specifically involve breaking the numbers into place value components to subtract more systematically.

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798 views1 page

Second Grade: Subtraction Strategies To Know in

The document lists 7 subtraction strategies to help children in second grade with subtraction, including counting back, using a place value chart, a hundreds chart, decomposing and composing numbers, writing subtraction horizontally or vertically, and chunking numbers into expanded form. These strategies can help children solve subtraction equations easily by breaking the problem down or representing it visually in different ways. The place value chart, decomposing and composing, and chunking strategies specifically involve breaking the numbers into place value components to subtract more systematically.

Uploaded by

api-295912571
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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7 Subtraction Strategies to Know

In SECOND GRADE
Listed below is a list of strategies to help your child with
subtraction. These seven subtraction strategies, will help your
child solve subtraction equations easily.

Counting Back Place Value Chart


Count back by starting with the largest number. Use the Place Value Chart to draw the largest
number, then cross out the smaller number.
-1 -10 -10
43 - 21 = ?
22 23 33 43
H T O
43 - 21 = ? XX X

Hundreds Chart Decompose, then Compose


Use the hundreds chart to count back tens and Decompose your numbers into expanded form.
ones. Subtract the tens, then the ones. Compose the
43 - 21 = ? differences.

21 22 23 43 - 21 = ?
-10 40 - 20 = 20 Decomposed to
33 3- 1= 2 expanded form

-10
-1
43
20 + 2 = 22 Composed
differences

Subtraction Horizontally Traditional Algorithm


Write your equation horizontally, then subtract. Write your equation vertically, then subtract.
43 - 21 = ? 43
- 21
20 + 2 = 22
22
Chunking
Decomposing a number into expanded form to more easily subtract multiples of ten.

43 - 21 = ?
43 - 20 = 23
23 1 = 22

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