Pre-algebra Exercises
These pages have all of the exercises currently under the Pre-algebra Math Mission on Khan Academy.
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All items (176)
A
- Absolute value to find distance 2
- Add, subtract, multiply, and divide numerical radical terms
- Adding and subtracting decimals word problems
- Adding and subtracting fractions with like denominators word problems
- Adding and subtracting fractions with unlike denominators word problems
- Adding and subtracting mixed numbers with like denominators 1
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- Adding and subtracting negative fractions
- Adding and subtracting negative fractions, decimals, and percents
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- Adding decimals (tenths)
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- Adding decimals 2
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- Adding fractions with common denominators
- Adding fractions with unlike denominators
- Adding negative numbers intro
- Approximating square roots
- Area problems
C
- Compare 3-digit numbers
- Comparing absolute values
- Comparing decimal place value
- Comparing decimals (tenths, hundredths, and thousandths)
- Comparing fractions and mixed numbers
- Comparing fractions with different numerators and denominators
- Comparing fractions with the same numerator or denominator
- Comparing irrational numbers with a calculator
- Composite numbers
- Computing in scientific notation
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- Converting fractions to decimals
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- Creating bar charts
- Creating expressions with parentheses
- Cube roots
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D
- Decimals on the number line 2
- Decimals on the number line: hundredths 0-0.1
- Decimals on the number line: tenths
- Decimals on the number line: tenths 0-1
- Decomposing fractions
- Discount, tax, and tip word problems
- Distributive property
- Dividing completely
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- Dividing decimals 2
- Dividing decimals 3
- Dividing decimals 4
- Dividing decimals: hundredths
- Dividing fractions
- Dividing fractions by fractions and whole numbers applications
- Dividing positive and negative fractions
- Dividing unit fractions by whole numbers
- Dividing whole numbers by unit fractions
- Dividing whole numbers to get a decimal
- Divisibility
- Divisibility intuition
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E
F
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M
- Markup and commission word problems
- Math patterns 2
- Measuring area with unit squares
- Money and decimal place value intuition
- Multi-step rational number word problems
- Multiplication and division with powers of ten
- Multiplying and dividing negative numbers
- Multiplying and dividing scientific notation
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- Multiplying fractions and whole numbers word problems
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- Multiplying fractions by whole numbers
- Multiplying mixed numbers
- Multiplying positive and negative fractions
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N
O
P
- Perimeter 1
- Place value
- Positive and negative exponents
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- Prime factorization
- Prime numbers
- Properties of exponents
R
- Rate problems 2
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- Rational numbers on the number line
- Reading bar charts 1
- Reading bar charts 2
- Reading bar charts 3
- Reading pictographs 1
- Reading pictographs 2
- Reading stem and leaf plots
- Recognizing fractions 1
- Recognizing rational and irrational numbers
- Regrouping decimals
- Regrouping whole numbers
- Rewriting decimals as fractions
- Rewriting decimals as fractions 2
- Rewriting fractions as decimals
- Rounding decimals
- Rounding whole numbers
S
- Scientific notation
- Scientific notation intuition
- Significant figures
- Simplify numerical radical terms
- Simplifying fractions
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- Solving ratio problems with tables
- Square roots of perfect squares
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- Subtracting decimals 0.5
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- Subtracting decimals 2 (with the standard algorithm)
- Subtracting decimals 3 (with the standard algorithm)
- Subtracting fractions with common denominators
- Subtracting fractions with unlike denominators
- Subtracting negative numbers intro
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