Add whole tens - missing addend
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Free printable Add whole tens - missing addend worksheets for 1st grade. Students find the missing multiple of ten in an equation (e.g., 30 + __ = 80), combining whole-tens addition with algebraic reasoning. Builds flexible thinking with decade numbers. Part of our addition worksheets collection.
What You'll Learn
- Find the missing multiple of ten in an addition equation
- Solve missing-addend problems where both values are whole tens
- Apply place value understanding to find missing tens addends
FAQ
What makes missing-addend problems with whole tens a useful challenge for 1st graders?⌄
They require students to apply both place value understanding and algebraic reasoning simultaneously, stretching their mathematical thinking efficiently.
How can students check their answer to a whole-tens missing addend problem?⌄
After finding the missing ten, students substitute it back into the equation and verify the sum — a simple self-check habit that builds mathematical confidence.
Does this skill connect to two-digit subtraction concepts?⌄
Yes — '30 + __ = 80' is equivalent to '80 - 30 = __,' so this activity previews subtracting multiples of ten, a key 2nd grade standard.
Ratings & Reviews
3Tom B.
Learning Specialist · Verified download
This will be a great addition. I already recommend ClassWeekly to all the families I work with.
Helpful · 10
Sarah K.
Kindergarten Teacher · Verified download
So excited for this to be ready! My students really need more practice with this topic.
Helpful · 11
Emily W.
Homeschool parent · Verified download
Excited for this one! I've been hunting for a good printable on this topic for weeks.
Helpful · 9
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