1st grade addition & subtraction worksheets
10 addition & subtraction skills at 1st grade, one sheet each, free with its answer key: addition & subtraction within 10, addition mad minute, addition within 20, and more.
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Facts & fluency
- Addition & subtraction within 10 Adding puts groups together. Subtracting takes some away. Pictures like ten-frames help you see the answer.
- Addition mad minute Work fast and left to right. Skip a hard one and come back; the clock does not wait.
- Addition within 20 Make a ten first when you can. It turns hard facts like 9 + 6 into easy ones like 10 + 5.
- Balancing equations The equal sign means both sides are the same amount, so check that they balance.
- Fact families The three numbers in the roof are a family. Write all four facts they make together.
- Missing addends Find the number that makes the equation true. Count up from the part you already know.
- Number bonds The two parts always join together to make the whole.
- Subtraction within 20 Think addition to subtract: for 13 − 8, ask what you add to 8 to make 13.
Multi-digit addition & subtraction
- Two-digit addition Add the ones first. If they make ten or more, carry a ten to the tens column.
- Two-digit subtraction with regrouping If the top ones digit is too small, trade one ten for ten ones before you subtract.
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Addition & subtraction at other grades: K · 2nd · 3rd · 4th · 7th