Adding and Subtracting Rational Numbers Explained

What is the main topic of Mrs. Watson's lesson?

• Solving quadratic equations

• Dividing decimals

• Adding and subtracting mixed forms of rational numbers

• Multiplying fractions

How much did it rain on Saturday?

• 1.5 inches

• 2.5 inches

• 1.2 inches

• 2.0 inches

What is the first step in adding 1.5 inches and 1 and two-thirds inches?

• Convert 1.5 to a fraction

• Convert 1 and two-thirds to a decimal

• Multiply both numbers by 2

• Subtract the smaller number from the larger number

What is 1.5 converted to a fraction?

• 1 and 1/3

• 1 and 1/2

• 1 and 3/4

• 1 and 2/3

What common denominator is used to add 1 and 1/2 plus 1 and 2/3?

• 4

• 5

• 7

• 6

What is the sum of 1 and 1/2 plus 1 and 2/3 in simplest form?

• 3 and 1/6

• 2 and 1/6

• 2 and 2/6

• 3 and 2/6

What is the decimal equivalent of 4/5?

• 0.7

• 0.6

• 0.8

• 0.9

What is the sum of -6.8 and -7.4?

• -14.2

• -13.2

• -15.2

• -14.8

When adding two negative numbers, what should you do?

• Divide them

• Add them

• Subtract them

• Multiply them

What is the final result of adding -6 and 4/5 plus -7 and 4/10?

• -13 and 2/10

• -14 and 2/10

• -15 and 2/10

• -16 and 2/10