Adding and Subtracting Rational Numbers Explained

The video tutorial covers the addition and subtraction of rational numbers, including integers, fractions, and decimals. It begins with an introduction to using a number line for basic operations and progresses to more complex rules for adding numbers with the same and opposite signs. The tutorial also includes practical examples of adding fractions, mixed numbers, and decimals, and concludes with an introduction to subtraction, highlighting its similarities to addition.

What is the result of adding 4 and 5 using a number line?

• 10

• 9

• 8

• 7

If you add -3 and -2, what is the result?

• -1

• -5

• -6

• -4

When adding numbers with the same sign, what operation do you perform?

• Multiply the numbers

• Add the numbers

• Divide the numbers

• Subtract the numbers

What is the result of adding 9 and -6?

• -15

• 15

• -3

• 3

How do you convert the mixed fraction 6 3/4 to an improper fraction?

• 25/4

• 24/4

• 27/4

• 26/4

What is the simplified form of the sum 2/3 + (-2/9)?

• 2/9

• 4/9

• 4/3

• 1/3

What is the result of adding -5.3 and -4.9?

• -9.2

• -10.2

• -0.4

• -1.2

What is the result of 19.3 + (-12.2)?

• -31.5

• 31.5

• -7.1

• 7.1

What is the result of 6 - 10?

• -4

• 4

• 16

• -16

What is the result of -8 - (-4)?

• -12

• 4

• -4

• 0