Operation of Rational Numbers

John had 5 apples. He bought 6 more but then gave away 8 and ate 9. How many apples does he have now?

• -5

• 5

• 21

• 21

A group of students are working on a project to convert fractions to decimal numbers in a real-world context. They are using this knowledge to understand the distribution of resources in their community, ensuring fairness and equality. They come across the fraction 3/8. If they were to convert this fraction to a decimal number, what would it be? This question requires higher-order thinking skills as it involves application of mathematical knowledge in a real-world context.

• 0.375

• 0.38

• 0.8375

• 0.3875

-6 + 8 - 14 + 17

• -5

• 5

• -19

• -21

• -18

• -2

• 14

• 52

• -15

• 5

• -11

• 7

• -23

• 59

• 27

• 11

• -1.3

• 1.3

• 1.8

• -3.2

-10 + 8

• -2

• 2

• 18

• -18

• 0.6

• 0.66

• 0.70

• 6.6