50+ Addition Word Problems worksheets for 7th Year on Quizizz ... - Free Printable

Let's solve each of these integer word problems step by step and explain the reasoning behind each solution.

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1. Temperature Rise

> One spring, the temperature rose from -5 degrees to 12 degrees in 24 hours. How much did the temperature rise in 24 hours?

Solution:
We find the difference between the final and initial temperatures:
$$
12 - (-5) = 12 + 5 = 17
$$

✔ Answer: The temperature rose by 17 degrees.

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2. Elevator Movement

> An elevator starts on the ground floor. It goes up 7 floors and then down 9 floors. What floor is it on?

Solution:
Start at 0 (ground floor).
Up 7 floors: $ 0 + 7 = 7 $
Down 9 floors: $ 7 - 9 = -2 $

Negative means below ground (basement).

✔ Answer: The elevator is on the -2nd floor (or 2 floors below ground).

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3. Checking Account Balance

> Richard is $15 overdrawn on his checking account. He writes a check for $7. What is the balance now?

Solution:
Overdrawn means negative balance: $ -15 $
Writing a check subtracts more money: $ -15 - 7 = -22 $

✔ Answer: His new balance is -$22.

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4. Average Change in Enrollment

> The enrollment at Temple Junior High School has a change of -60 over a 3-year period. What is the average change per year?

Solution:
Total change: $-60$ over 3 years
Average per year:
$$
-60 \div 3 = -20
$$

✔ Answer: The average change is -20 students per year (a decrease of 20 per year).

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5. Tanya’s Profit

> Tanya's baked goods took in $175 to help raise money for the Chorus Club. Tanya needed to spend $32 for baking supplies. Write and evaluate an addition expression to find how much profit she made.

Solution:
Profit = Income + (Negative cost)
$$
175 + (-32) = 175 - 32 = 143
$$

✔ Answer: The profit is $143.

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6. Bank Withdrawals

> Jeff saw 7 identical withdrawals on his bank statement that came to a total of $315. By how much did each withdrawal change Jeff's account?

Solution:
Total withdrawn: $315
Number of withdrawals: 7
Each withdrawal:
$$
315 \div 7 = 45
$$

Since it's a withdrawal, it decreases the account → negative value.

✔ Answer: Each withdrawal changed his account by -$45.

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7. Temperature Change

> When Alex went to work the temperature was -2 degrees. When he got home from work the temperature raised 14 degrees. What was the actual temperature when he got home?

Solution:
Start: $-2$
Rise: $+14$
Final temperature:
$$
-2 + 14 = 12
$$

✔ Answer: The temperature was 12 degrees when he got home.

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8. Temperature Change from 8 A.M. to Noon

> Today the 8:00 A.M. temperature was -3 degrees and the noon temperature was 1 degree. What was the change in temperature from 8 A.M. to noon?

Solution:
Change = Final - Initial
$$
1 - (-3) = 1 + 3 = 4
$$

✔ Answer: The temperature increased by 4 degrees.

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9. Hot Air Balloon Elevation

> A hot air balloon is at an elevation of 425 feet. It descends 110 feet. What is the elevation of the balloon? Use an addition equation.

Solution:
Descending means subtracting height → add a negative number:
$$
425 + (-110) = 425 - 110 = 315
$$

✔ Answer: The new elevation is 315 feet.

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10. Seagull Dive

> A seagull is gliding 53 feet above the surface of the water. It then dives 70 feet to catch a fish. How many feet below the surface of the water does the seagull dive?

Solution:
Start: 53 feet above → $+53$
Dives 70 feet → $-70$
Final position:
$$
53 + (-70) = -17
$$

Negative means below surface.

So, it is 17 feet below the surface.

✔ Answer: The seagull dives 17 feet below the surface.

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✔ Final Answers Summary:

| Question | Answer |
|--------|--------|
| 1 | 17 degrees |
| 2 | -2nd floor |
| 3 | -$22 |
| 4 | -20 students per year |
| 5 | $143 profit |
| 6 | -$45 per withdrawal |
| 7 | 12 degrees |
| 8 | +4 degrees |
| 9 | 315 feet |
| 10 | 17 feet below |

Let me know if you'd like these formatted into a printable answer sheet!