Mathematics Form 1 - Unit 1 Rational Number

What is the definition of integers?

Positive and negative whole numbers including zero.

What are positive integers?

Integers that have a value greater than zero.

Give an example of a positive integer.

+12, +7

What are negative integers?

Integers that are lower than zero.

Give an example of a negative integer.

−6, −15

Is the number 7227 an integer?

No, it is a fraction.

Is the number 6.8 an integer?

No, it is a decimal.

Is the number −12 an integer?

Yes, it is an integer.

How are integers arranged on a number line?

Positive numbers are greater than negative numbers.

What are positive fractions?

Fractions that are more than zero.

What are negative fractions?

Fractions that are less than zero.

How can two or more fractions be compared?

By equating the denominators first.

What is the product of (9.37−0.63) and (−0.4)?

−3.496.

What is the result of 2.34 + (3.1 ÷ 0.2)?

17.84.

What is the definition of rational numbers?

Numbers that can be written in fractional form p/q, where p and q are integers and q≠0.

Give an example of a rational number.

−12, 7.5.

What is the outcome of −0.8 + 34×(−216)?

−21740.

What is the significance of comparing decimals?

Their values can be arranged in ascending or descending order.

What do negative decimals represent?

Decimals that are less than zero.

What is the sum of positive and negative fractions?

Basic arithmetic operations can be applied.

How can you determine whether a number is an integer?

It must be a whole number without a fraction or decimal.

What does it mean for a number to be greater than zero?

It is a positive number.

What does it mean for a number to be less than zero?

It is a negative number.

What type of numbers do positive fractions include?

Values more than zero.

What type of numbers do negative fractions include?

Values less than zero.

Name a property of integers on the number line.

Positive integers are to the right of zero.

What operations can be performed with rational numbers?

Combined basic arithmetic operations.

Is 4−2 a rational number?

Yes, because it can be expressed as a fraction.

What do you obtain when you add a positive decimal and a negative decimal?

The result will depend on their absolute values.

Can integers be represented as fractions?

Yes, all integers can be expressed as fractions.

Provide the definition for positive decimals.

Decimals that are more than zero.

Provide an example of negative fractions.

−1/2, −3/4.

What is the process for solving operations involving fractions?

Find a common denominator.