Adding negative decimals and fractions

Adding negative decimals

LT: Students will be able to apply what they learned about adding integers to adding decimals and fractions

Multiple Choice

What is the third rule?

When subtracting a negative,

• just add

• subtract and take the sign of the larger absolute value

• just add the opposite

• just do it

Multiple Choice

Positive + Positive = ??

• Positive
• Negative
• It Depends

Multiple Choice

negative + Negative = ??

• Positive

• Negative

• It Depends

Multiple Choice

Positive + Negative = ??

• Positive

• Negative

• It Depends on which has a greater absolute value

Multiple Choice

- 5.62 + (- 12.9) =

• -6.91

• - 18.52

• 6.28

• 6.91

Multiple Choice

-23.4 - 3.4=

• -20

• 26.8

• -26.8

• 20

Open Ended

Explain how to solve this problem:

-2.5 + (-5.75) =

Multiple Choice

(-5.36) + 2.6 =

• -2.76

• 2.76

• 7.96

• -7.96

Multiple Choice

14 - 8.9 =

• 7.5

• 6.9

• 10.3

• 5.1

Open Ended

Explain how to solve this problem:

-2.5 + (-5.75) =

Multiple Choice

5.23 - (-9.1) =

• -3.87

• 3.87

• 4.32

• 14.33

Multiple Choice

5.15 - (-6.25) =

• -1.05

• 1.05

• 11.40

• -11.40

Open Ended

Explain how to solve this problem:

-1.5 - (-3.1) =