Exploring Operations with Rational Numbers

What is the rule for adding two negative rational numbers?

• Add the numbers and keep the sign negative

• Subtract the numbers and keep the sign negative

• Add the numbers and keep the sign positive

• Subtract the numbers and keep the sign positive

When adding or subtracting fractions, what must you find first?

• A common denominator

• The least common multiple

• A common numerator

• The greatest common divisor

What is the result of 7/8 - 4/2 when simplified?

• 1/8

• 9/8

• -1/8

• -9/8

How do you handle the decimal places when adding or subtracting decimals?

• Align the decimal places

• Ignore the decimal places

• Align the whole numbers

• Align the fractions

What is the result of adding -5.5 and -6.7?

• -1.2

• 12.2

• -12.2

• 1.2

What is the reciprocal of 3/4?

• 4/3

• 3/4

• 1/4

• 1/3

What is the result of multiplying 17/16 by -24/7?

• -68/7

• 17/4

• -17/4

• 68/7

How much change does Sane receive if he pays $20 for groceries costing $12.57?

• $7.43

• $8.43

• $6.43

• $7.57

How many cups of flour does Mia need in total for one batch and a double batch of cookies?

• 4.5 cups

• 3 cups

• 4 cups

• 5 cups

What is the result of 24 divided by -4?

• -8

• 8

• 6

• -6