Ready Math 7 - Lesson 8 Review

What is the sum of -58 and -43?

• 15

• -101
• 101

• -15

Kingston made a pot of 29 1/2 C of gumbo. His family ate some for lunch. this changed the amount in the pot by -7 3/4 C. Then he gave his neighbors some gumbo. This changed the amount in the pot by -6 1/2 C. How many cups of gumbo are left in the pot?

Is (-14.3) + 39.6 greater than or less than 43.2 + (-26.8)?

The sum of (-14.3 + 39.6) is ​​ (a)   . The sum of 43.2 + (-26.8) is ​ (b)   . A comparison of the answers shows that ​ (c)   . Therefore, (-14.3) + 39.6 is ​ (d)   43.2 + (-26.8).

• 25.3
• 16.6
• 25.3 > 16.6
• greater than
• less than
• -25.3
• -16.6
• -25.3 < -16.6
• 53.9
• 70.2

Organize these options into the right categories

Groups:

(a) Positive

,

(b) Zero

,

(c) Negative

• 83.1 + (-83 1/10) + 0.01

• 29.6 + (-29 3/5)

• (-1/10) + (-7/10) + (-0.2)

• 75 + (-57)

• -40 4/5 + 40.7

What is the sum of 4 3/10 and (-6.2)? Express your answer as a decimal.

Mathematical Equivalence

ON

What is the sum of -29 and -64?

• -93

• -35

• 93

• 35

Determine if each sum is negative, positive, or zero.

Groups:

(a) Negative

,

(b) Zero

,

(c) Positive

• 16.75 + -16 3/4

• (-0.2) + (-0.3) + (-0.5)

• -9 4/5 + 9.5

• -52 + 28

• 37 1/4 + 52.3 + (-52.3)

The sum of (-78.1) + 52.3 is ​ (a)   .The sum of 35.7 + (-71.8) is ​ (b)   . A comparison of the answers shows that ​ (c)   . Therefore (-78.1) + 52.3 is ​ (d)   35.7 + (-71.8).

• -25.8
• 25.8
• -36.1
• 36.1
• (-25.8) > (-36.1)
• 25.8 < 36.1
• greater than
• less than

The height of Yuan's lemongrass plant is 35 1/4 in. Yuan changes the height of the plant by -15 1/2 in. when she cuts its stalk to use in her grandmother's recipe for Vietnamese Lemongrass Chicken. Not long after the plant grows 4 3/4 in. What is the final height of Yuan's lemongrass plant?

• 19 3/4 in.

• 24 1/2 in.

• 32 1/4 in.

• 55 1/2 in.

what is (-4 7/10) + 9.2? Express your answer as a mixed fraction.

Mathematical Equivalence

ON