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Multiple Choice

Which of the following is the correct way to decompose -3.4?

• Number Bond A: -3 and 0.4

• Number Bond B: -3 and -0.4

• Both Number Bond A and B

• Neither Number Bond A nor B

Multiple Choice

What is the additive inverse of 3.4?

• -3.4

• 3.4

• 0

• 1.4

Open Ended

What do you notice about the additive inverses on the number line?

Fill in the Blank

Write a number sentence showing that 3.4 and -3.4 are additive inverses.

.

+

(

-

.

)

=

Multiple Select

Which of the following expressions uses additive inverses to simplify the calculation?

• 3.4 + (-3.4)

• 3.4 + (-1.4)

• -8.2 + 1.2

• 1.2 + 3.4

Multiple Choice

Evaluate the following expression: -3.4 + (-1.4)

• -4.8

• -2.0

• -1.4

• 3.4

Fill in the Blank

Fill in the blank: The additive inverse of -7 is ___.

Multiple Choice

What is the sum of -2 3/4 + 3 1/4?

• 1/2

• -1/2

• 2

• -2

Fill in the Blank

Eve's final answer for the sum of -2 3/4 + 3 1/4 is ___ .

/

Open Ended

Explain how Eve simplified the expression -2 3/4 + 3 1/4 in her work. What steps did she take to arrive at her answer?

Multiple Select

Which of the following are correct strategies to find the sum of mixed numbers with different signs?

• Break the numbers into whole and fractional parts

• Add the whole numbers and fractions separately

• Always subtract the smaller number from the larger

• Combine all negative numbers first

Open Ended

Describe how you would use a number line to find the sum of 4 2/3 + (-3 1/3).

Multiple Choice

If the temperature at noon was -4.5°F and it rose by 10°F in four hours, what was the temperature at 4:00 p.m.?

• 5.5°F

• -5.5°F

• -14.5°F

• 4.5°F

Open Ended

What strategies can we use to add rational numbers?

Multiple Choice

Which number bond correctly decomposes -3.4?

• Number Bond A: -3 and 0.4

• Number Bond B: -3 and -0.4

• Both A and B

• Neither A nor B

Open Ended

Decompose -2 2/3 into a sum of its integer part and its non-integer part.