Multiply whole tens by whole tens
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Free printable multiply whole tens by whole tens worksheets for 4th grade. Students multiply pairs of multiples of 10 (e.g., 30 × 40), combining basic fact knowledge with the two-zeros rule. These worksheets build a critical mental multiplication skill used throughout 4th grade and beyond. Part of our mental multiplication worksheets collection.
What You'll Learn
- Multiply two multiples of 10 using mental math strategies
- Apply the pattern of multiplying lead digits and counting zeros
- Build fluency with whole-ten by whole-ten mental multiplication
FAQ
How do students solve 30 × 40 mentally?⌄
Multiply the non-zero digits (3 × 4 = 12), then count the total zeros in both factors (two zeros) and append them: 1,200.
Where does multiplying whole tens by whole tens appear in real math?⌄
Estimating areas (30 feet × 50 feet), calculating quantities in dozens of groups of dozens, and scaling up recipes all use this round-number multiplication pattern.
What prerequisite knowledge do students need for this skill?⌄
Students need solid ×1-10 fact fluency and an understanding that multiplying by 10 appends a zero — both prerequisites that should be in place by mid-4th grade.
Ratings & Reviews
3Emily W.
Homeschool parent · Verified download
Excited for this one! I've been hunting for a good printable on this topic for weeks.
Helpful · 9
Priya N.
Kindergarten Teacher · Verified download
This is going straight into my lesson plans the second it drops. Please prioritize this one!
Helpful · 13
Maria R.
Homeschool parent · Verified download
Can't wait! This is exactly what we've been looking for. Please make it soon!
Helpful · 7
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