Exploring Adding Rational Numbers

What should you do when adding two decimal numbers with the same sign?

• Add the numbers and use the opposite sign

• Subtract the numbers and use the sign of the smaller number

• Add the numbers and use the same sign

• Subtract the numbers and use the sign of the larger number

When adding 4.5 and 6.3, what is the correct sum?

• 10.5

• 10.8

• 11.2

• 9.8

What is the result of adding -3.7 and -6.5?

• -8.2

• -12.2

• -9.2

• -10.2

If you subtract 2.5 from 10.7, what is the result?

• 9.2

• 7.2

• 6.2

• 8.2

What is the result of subtracting 3.3 from 11.8?

• -8.5

• -7.5

• 8.5

• 7.5

How do you add fractions with the same sign?

• Subtract the denominators and keep the same sign

• Add the numerators and keep the same sign

• Subtract the numerators and keep the same sign

• Add the denominators and keep the same sign

What is the result of adding 3/5 and 4/5?

• 1 1/5

• 2/5

• 1 2/5

• 7/5

What is the simplified form of 6/4?

• 1 2/4

• 1 3/4

• 1 1/4

• 1 1/2

What is the result of adding -3/10 and -9/10?

• -1 3/10

• -1 1/5

• -1 2/10

• -1 1/10

What is the result of adding -1/2 and 4/5?

• -3/10

• -1/10

• 1/10

• 3/10