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Questions and Answers
What is the result of adding $0.59 + 0.18$?
What is the result of adding $0.59 + 0.18$?
- $0.76$
- $0.75$
- $0.73$
- $0.77$ (correct)
What is the result of $673 – 1.54$?
What is the result of $673 – 1.54$?
- $670.46$
- $672.54$
- $671.46$ (correct)
- $673.54$
What is the result of adding $5 + -9$?
What is the result of adding $5 + -9$?
- $4$
- $-5$
- $-4$ (correct)
- $14$
What is the outcome of subtracting $6 – -1$?
What is the outcome of subtracting $6 – -1$?
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What is the sum of $214.41 + 84.663$?
What is the sum of $214.41 + 84.663$?
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Study Notes
Addition and Subtraction of Rational Numbers
- Several problems involve adding and subtracting fractions and mixed numbers.
- Examples include: 11/12 - 1/2; 5/6 - 1/3; 1/11 + 4/5; 3/7 + 1/4; 2/9 + 1/3; 1/2 - 1/5; 9/10 - 1/6; 1/12 + 5/6; 17/11 - 9/5; 6/5 + 7/7
- Some problems involve adding and subtracting decimals.
- Examples include: 6.8 + 6; 0.59 + 0.18; 673 - 1.54; 72.75 - 53.9; 214.41 + 84.663
- Some problems involve adding and subtracting integers.
- Examples include: -44 + -84; 6 - -1; -83 - -95; 9 + -9; -9 + 10; 42 + -1; -2 - 1
Mixed Number and Fraction Operations
- Many problems require expressing answers as fractions or mixed numbers.
- Several problems specifically state that the answer needs to be written as a fraction or a mixed number.
Decimal Addition and Subtraction
- The decimal addition and subtraction problems are presented as standard decimal arithmetic problems.
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