Exploring the Addition of Rational Numbers

What is the first step when adding decimal numbers with the same sign?

• Line up the decimal points

• Multiply the numbers

• Subtract the smaller number from the larger number

• Convert to fractions

When adding two positive decimal numbers, what will be the sign of the result?

• Negative

• Positive

• Zero

• Depends on the numbers

How do you determine the sign of the result when adding decimals with different signs?

• Always negative

• Always positive

• Keep the sign of the larger absolute value

• Keep the sign of the smaller absolute value

What is the result of adding 7.875 and -2.275?

• 5.5

• 5.6

• 5.75

• 5.875

What is the first step when adding fractions with the same denominator?

• Subtract the numerators

• Add the numerators

• Multiply the denominators

• Find a common denominator

What is the simplified form of -6/8?

• -3/4

• -1/2

• -2/3

• -3/8

When adding fractions with different signs, how do you determine the sign of the result?

• Always negative

• Always positive

• Keep the sign of the larger absolute value

• Keep the sign of the smaller absolute value

What is the result of adding -1/3 and 4/15?

• 1/15

• 7/15

• 5/15

• 3/15

What is one method to find a common denominator for fractions with different denominators?

• Multiply the denominators

• Subtract the denominators

• Divide the numerators

• Add the numerators

What is the simplified form of 4 + (-6)/8?

• 1/2

• -1/2

• 1/4

• -1/4