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Add and Subtract Within 20: Set 2 worksheet preview

Worksheet

Add and Subtract Within 20: Set 2

Grade 1 practice adding and subtracting within 20, including missing-number equations.

Grade 1MathInteractive · Printable

Aligned to1.OA.C.6

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What’s included

  • Single worksheet
  • Auto-graded online
  • 1 Common Core standard
  • Printable answer key
  • 15 questions
  • Classroom-ready

Details

Format
Interactive · Printable
Grade
Grade 1
Subject
Math
Question types
Fill in the blank

About this worksheet

What students practice

  • Students add and subtract within 20.
  • Students find the missing number in addition and subtraction equations.

How to use

Use for fluency practice; ask students to name the strategy they used, like making ten, for one problem in each row.

Curriculum

Common Core standard covered

1.OA.C.6

Add and subtract within 20 using strategies, and within 10 fluently.

Preview

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Name Date

Add and Subtract Within 20: Set 2

Find each sum, difference, and missing number.

Add

Write each sum.

1.

8 + 4 =  

2.

3 + 6 =  

3.

9 + 7 =  

4.

5 + 4 =  

5.

8 + 2 =  

Subtract

Write each difference.

6.

16 − 3 =  

7.

10 − 8 =  

8.

13 − 2 =  

9.

14 − 4 =  

10.

20 − 1 =  

Missing numbers

Write the missing number.

11.

3 −   = 2

12.

1 +   = 11

13.

7 +   = 17

14.

5 +   = 9

15.

6 +   = 7

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