Math Drills
Addition and Subtraction up to 20 worksheets for Grade 1 (Elementary School)
What this unit covers
Using the idea of ten and some more, this unit covers addition and subtraction up to 20 with no carrying and no borrowing, such as 13 + 4 and 17 - 5. The group of ten stays as it is and only the ones digits are worked on, and Fill in the Blank and Word Problems confirm the same idea.
Writing 13 + 4 as 7 is the telling error: only the ones are added and the group of ten is dropped. A single-digit answer points to this pattern. Answering 7 for 17 - 5, by subtracting from the 1 in the tens place as well, follows close behind.
Learning steps
Sums up to 20
- Calculation
- Fill in the Blank
- Word Problems
Subtraction up to 20
- Calculation
- Fill in the Blank
- Word Problems
Worksheets
Sums up to 20
Subtraction up to 20
Summary Prints
Calculation
- Sums up to 20 · Calculation12 questions
- Subtraction up to 20 · Calculation12 questions
Fill in the Blank
- Sums up to 20 · Fill in the Blank12 questions
- Subtraction up to 20 · Fill in the Blank12 questions
Word Problems
- Sums up to 20 · Word Problems3 questions
- Subtraction up to 20 · Word Problems3 questions
Frequently asked questions
- What do the “Addition and Subtraction up to 20” worksheets for Grade 1 (Elementary School) practice?
- They cover problems such as Calculation, Fill in the Blank, Word Problems.
- How many “Addition and Subtraction up to 20” worksheets are there for Grade 1 (Elementary School)?
- 15 worksheets are free to use. Every one is a printable PDF and comes with an answer key.