Grade 2 · Year 3 · Class 2 · ages 7–8 · Number sense
10 more, 10 less, 100 more, 100 less: Grade 2 practice
Adding or taking away 10, 100 or 1,000 and seeing which digit changes. Eight questions at a time, instant feedback and a mastery score from 0 to 100.
This practice needs JavaScript. You can still print a 10 more, 10 less, 100 more, 100 less worksheet with an answer key.
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
Only one digit changes: 10 more changes the tens digit, 100 more changes the hundreds digit.
Try these on paper first
One question at each level. Tap a question to see the answer.
Easy 10 less than 35 is
Answer: 25
Medium 10 less than 591 is
Answer: 581
Challenge 10 less than 3,440 is
Answer: 3430
More ways to practise 10 more, 10 less, 100 more, 100 less
- Printable 10 more, 10 less, 100 more, 100 less worksheet with an answer key (new questions every time)
- Number Sense Lab: Explore place value, number patterns, rounding, factors and multiples with short adaptive challenges.
- All Grade 2 practice · Number sense worksheets
Related skills
- Rounding to the nearest 10 (Grade 2)
- What a digit is worth (Grade 2)
- Greater than, less than and equal to (Grade 1)
- Skip counting (Grade 1)
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FAQ
10 more, 10 less, 100 more, 100 less: questions
What grade is 10 more, 10 less, 100 more, 100 less?
It is usually taught in Grade 2 (Year 3 in England, Class 2 in India, ages 7–8), though schools and countries differ. Try the grade above or below if it feels too hard or too easy.
What does a 10 more, 10 less, 100 more, 100 less question look like?
For example: "10 less than 591 is" The answer is 581. Only one digit changes: 10 more changes the tens digit, 100 more changes the hundreds digit.
What should I learn before and after 10 more, 10 less, 100 more, 100 less?
Before it, try rounding to the nearest 10 (Grade 2). After it, move on to what a digit is worth (Grade 2).
How can I get better at 10 more, 10 less, 100 more, 100 less?
Only one digit changes: 10 more changes the tens digit, 100 more changes the hundreds digit. 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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