By Jonathan J. White, Teri Stimmel, Scott Searcy
The learn-by-doing solution to grasp simple math and Pre-Algebra
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Working with Numbers
- Whole numbers
- Integers and rationals
- Powers, exponents, and roots
Notation and dimension
- Scientific notation
- Probability and statistics
Series and Equations
- Algebraic expressions
- Simple equations
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Additional resources for Basic Math and Pre-Algebra
Is greater than. 5. True. 6. -2 7. 3 8. 1 9. True. (Collections of Numbers, p. 27) (Symbols and Terminology, p. 28) (Symbols and Terminology, p. 28) (Some Properties [Axioms] of Addition, p. 29) (Some Properties [Axioms] of Addition, p. 29) 4 (Some Properties [Axioms] of Multiplication, p. 30) (Some Properties [Axioms] of Multiplication, p. 30) 10. True. Multiplication distributes over addition. 11. False. Multiplication does not distribute over multiplication. Operations, p. 30) 12. 35 (Grouping Symbols and Order of Operations, p.
3. Round 725,369 to the nearest ten thousand. answer: 725,369 is rounded up to 730,000. Work Problems Use these problems to give yourself additional practice. 1. Round 763 to the nearest ten. 2. Round 763 to the nearest hundred. 3. Round 459,732 to the nearest thousand. Worked Solutions 1. 760 763 is rounded down to 760. 2. 800 763 is rounded up to 800. 3. 460,000 459,732 is rounded up to 460,000. ) Estimating Being able to estimate can save you time and is useful when checking your answers to see whether your solution is reasonable.
Answer: Yes. 3. 1,549 is not divisible by 2, so it is not divisible by 6 either. Is 3248 divisible by 8? answer: Yes. 7. The last digit is 5, making it divisible by 5. Is 1549 divisible by 6? answer: No. 6. The number created by the last two digits is 26, which is not divisible by 4. Is 145 divisible by 5? answer: Yes. 5. The sum of the digits of 912 is 12, which is divisible by 3. Is 126 divisible by 4? answer: No. 4. 36 ends in 6, making it divisible by 2. The number created by the last three digits is 248, which is divisible by 8.