Grade 3 · Year 4 · Class 3 · ages 8–9 · Multiplication
Multiplying by 10 and 100: Grade 3 practice
Multiplying whole numbers by 10 and 100. Eight questions at a time, instant feedback and a mastery score from 0 to 100.
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Right answers raise your mastery score (more on harder questions) and wrong ones lower it a little. Your best score is saved on this device, and in your account if you log in.
The idea in one minute
Each digit moves one place to the left when you multiply by 10, and two places for 100.
Try these on paper first
One question at each level. Tap a question to see the answer.
Easy 28 × 10 =
Answer: 280
Medium 61 × 100 =
Answer: 6100
Challenge 904 × 100 =
Answer: 90400
More ways to practise multiplying by 10 and 100
- Printable multiplying by 10 and 100 worksheet with an answer key (new questions every time)
- All Grade 3 practice · Multiplication worksheets
Related skills
- Times tables 2, 3, 4 and 5 (Grade 3)
- Times tables 6, 7, 8 and 9 (Grade 3)
- Times tables 10, 11 and 12 (Grade 3)
- Missing factors (Grade 3)
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FAQ
Multiplying by 10 and 100: questions
What grade is multiplying by 10 and 100?
It is usually taught in Grade 3 (Year 4 in England, Class 3 in India, ages 8–9), though schools and countries differ. Try the grade above or below if it feels too hard or too easy.
What does a multiplying by 10 and 100 question look like?
For example: "61 × 100 =" The answer is 6100. Each digit moves one place to the left when you multiply by 10, and two places for 100.
What should I learn before and after multiplying by 10 and 100?
Before it, try missing factors (Grade 3). After it, move on to times tables word problems (Grade 3).
How can I get better at multiplying by 10 and 100?
Each digit moves one place to the left when you multiply by 10, and two places for 100. Practise a little every day, read the hint after each wrong answer, and use the printable worksheet when you want to write it out.
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