Welcome to . . .
Practice with Numbers
Integers, Decimal Numbers, Binary Numbers, Fractions
and Percentages
Link back to the On-line Tutor Welcome
How to use this site:
- Up at the top of this web page, click on the type of numbers you want to work with. That
list will stay with you, so you can change the type of numbers as you go along.
- For each type of numbers, there are addition and multiplication problems for you to
answer. The problems are made up by the computer, so there are MANY problems of each type.
- Also, problems go from easy (top of each list) to hard at the bottom of each list. If
you are a beginner, start with the easy ones and work your way to the harder ones. If you
are familiar with a type of problem, start in the middle, and drop back to easier problems
if you find you are having trouble.
- For adding and subtracting integers, and for
binary numbers, we have special help sites.
Visit those, too. (Be careful -- if you have logged in and you spend a lot of time on
those sites, we may think you have stopped, and then we will log you out. You can either
log back in, or come back here regularly, to practice.
List of Integer Problems
-- choose one to start with
- Integer Problems
- Adding and subtracting
Question 1Adding
and subtracting positive integers, for example -5 + 6
Question 2 Adding
and subtracting positive and negative integers, for example -(-5) + (-6)
Question 3 Adding
and subtracting positive integers, with an overall sign, for example -[-5 + 6]
Question 4Adding
and subtracting positive and negative integers, with an overall sign, for example -[-(-5)
+ (-6)]
Question 5 Like
question 3, except with three integers, for example -[-(-5) + (-6) - (3)]
- Multiplying
Question 6Multiplying
2 integers, for example (-5) * (6)
Question 7
Multiplying 2 integers, with an overall sign,for example -[(5)*(-6)]
Question 8
Multiplying 3 integers, for example (5)*(-6)*(-7)
Question 9
Multiplying 3 integers, with an overall sign, for example -[(5) * (-6)*(-7)]
- Tell Me My Score So Far
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List of Decimal Number Problems
-- choose one to start with
- Decimal Numbers
- Adding and subtracting
Question 10Adding
and subtracting positive reals, for example -5.96 + 6.47
Question 11Adding
and subtracting positive and negative reals, for example -(-5.96) + (-6.47)
Question 12Adding
and subtracting positive reals, with an overall sign, for example -[-5.96 + 6.47]
Question 13Adding
and subtracting positive and negative reals, with an overall sign, for example -[-(-5.96)
+ (-6.47)]
Question 14Like
question 3, except with three reals, for example -[-(-5.96) + (-6.47) - (3.25)]
- Multiplying
Question 15
Multiplying 2 reals, for example (-5.2) * (6.1)
Question 16
Multiplying 2 reals, with an overall sign,for example -[(5.2)*(-6.1)]
Question 17
Multiplying 3 reals, for example (5.2)*(-6.1)*(-7.2)
Question 18
Multiplying 3 reals, with an overall sign, for example -[(5.2) * (-6.1)*(-7.2)]
- Tell Me My Score So Far
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List of Binary Number Problems
-- choose one to start with
- Binary Numbers
- Converting Decimal to Binary
Question 19
Converting decimal integer to binary, range from 1 to 9
Question 20
Converting decimal integer to binary, range from 1 to 99
- Converting Binary to Decimal
Question 21
Converting binary to decimal integer, range from 1 to 9
Question 22
Converting binary to decimal integer, range from 1 to 99
- Adding Binary
Question 23 Adding
two binary numbers, range from 1 to 9
Question 24 Adding
two binary numbers, range from 1 to 99
- Multiplying Binary
Question 25
Multiplying two integers in binary, range from 1 to 6, for example 100 * 101
- Tell Me My Score So Far
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List of Fraction Number Problems
-- choose one to start with
- Fraction Numbers
- Adding Fraction
Question 26 Adding
two fractions, for example 2/3+4/5
Question 27 Adding
two fractions, for example 2¾ + 4/5
- Multiplying Fraction
Question 28
Multiplying two fractions, for example 2/3 × 4/5
Question 29
Multiplying two fractions, for example 2¾ × 4/5
- Practicing Percentage
Question 30
Practicing Percentage, for example "If X is 98% of 6.6, then X="
Question 31
Practicing Percentage, for example "If X is 198% of 66, then X="
- Tell Me My Score So Far
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