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Subtraction Within 20 - Printable Mathematics Worksheets year 2 - Wayground

Subtraction Within 20

10 questions

2nd - 2nd Grade

Mathematics

Subtraction Within 20 is a Grade 2 mathematics worksheet that helps students find differences when subtracting numbers from 0 to 20. It includes 10 problems in two formats: 5 fill-in-the-blank equations and 5 multiple-choice questions. Students solve equations such as 10 − 4 and 18 − 12, then select the correct difference from answer choices on other items. This free printable worksheet gives students focused practice with basic subtraction facts and recognizing accurate differences in both written-response and selected-response formats. It can support independent practice, a short skills check, or review after teacher modeling and guided subtraction strategies. The worksheet includes an answer key so teachers can quickly check student understanding and identify facts that need additional practice.

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Worksheets

Subtraction Within 20

Total questions: 10

Name
Class
Date
1.

10 - 4 = ?

(a)  

2.

15 - 5 = ?

(a)  

3.

18 - 12 = ?

a)

7

b)

5

c)

6

d)

8

4.

5 - 3 = ?

(a)  

5.

14 - 5 = ?

a)

8

b)

9

c)

10

d)

6

6.

9 - 6 = ?

(a)  

7.

20 - 8 = ?

a)

11

b)

13

c)

12

d)

28

8.

18 - 1 = ?

(a)  

9.
a)

13

b)

11

c)

7

10.
a)

13

b)

7

c)

9

Answer Key

Subtraction Within 20

Total questions: 10

1.
6
2.
10
3.
c)

6

4.
2
5.
b)

9

6.
3
7.
c)

12

8.
17
9.
c)

7

10.
a)

13

FAQs

What does the Subtraction Within 20 worksheet cover?

This Grade 2 mathematics worksheet focuses on solving subtraction equations with differences within 20. Its 10 items combine 5 fill-in-the-blank problems with 5 multiple-choice questions, helping students calculate differences such as 18 − 12 and identify the correct answer from several choices.

How can I use this worksheet to teach subtraction within 20?

First model how to find a difference by counting back, using a number line, or separating a quantity into parts. Then have students solve the fill-in-the-blank equations and explain their strategy before completing the multiple-choice items; discussing why distractors such as 28 for 20 − 8 are incorrect reinforces that subtraction reduces the starting number.

What mistakes should I watch for when students complete this subtraction worksheet?

Watch for students reversing the minuend and subtrahend, adding the numbers instead of subtracting, or counting back the wrong number of steps. In the multiple-choice items, students may select a nearby distractor without checking their calculation, while in the fill-in-the-blank items they may leave the difference incomplete or write a number greater than the starting number.

How do I assign and grade this Subtraction Within 20 worksheet?

Wayground provides this worksheet as a printable PDF and as a digital quiz, and it includes a complete answer key for checking all 10 subtraction items. For printable submissions, you can scan student work with the Wayground for Teachers app to help streamline grading.

How can I differentiate this subtraction worksheet for my students?

Use the worksheet’s Advanced Settings to adjust font spacing or font size so the subtraction equations and multiple-choice answer choices are easier to read. You can also enable a dyslexia-friendly font or translate the worksheet into another language when those changes support access to the problems.

Where can I find more worksheets like this on Wayground?

Wayground offers a broad collection of free printable worksheets and practice problems across all subjects, with downloadable PDFs and answer keys to help students master essential skills and concepts. Browse more resources at https://wayground.com/en-us/worksheets.