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Back to Tutor Intake Assessment: Solve real-world and mathematical problems involving the four operations with rational numbers

7.NS.A.3 Tutor Intake -- Applying All Four Operations to Rational Numbers

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Grade 7·9 problems·~11 min·Common Core Math - Grade 7·standard·7-ns-a-3
Work through problems with immediate feedback
A

Procedures

1

Compute −18+(−7.5)-18 + (-7.5).

2

Compute −2.5×5-2.5 \times 5.

3

A total loss of $45\text{\char"0024}45 is shared equally among 44 people, so
each person's share is −45÷4-45 \div 4. Compute this value.

4

A recipe uses 34\frac{3}{4} cup of oil. You convert this to a
decimal and multiply by 2.52.5 batches. What decimal value do
you multiply by 0.750.75?

B

Applications

1

"A hiker's elevation changes from 1,2501{,}250 meters to 840840
meters." Which operation finds the change in elevation?

2

A submarine goes from −150-150 meters to −85-85 meters. Computing
−85−(−150)=65-85 - (-150) = 65, what does the positive result of 6565 mean?

3

A credit card account starts with a balance of −$245-\text{\char"0024}245. The
account holder makes a payment of $120\text{\char"0024}120, then makes purchases
totaling $67.50\text{\char"0024}67.50. What is the final balance (in dollars,
negative if overdrawn)?

4

A store's temperature is −4 ∘C-4\,^\circ\text{C}. It rises
32 ∘C\frac{3}{2}\,^\circ\text{C} per hour for 66 hours, then falls
1.5 ∘C1.5\,^\circ\text{C} per hour for the next 44 hours. What is
the temperature (in degrees Celsius) after all 1010 hours?

5

The temperature changes from −3.5 ∘F-3.5\,^\circ\text{F} to
11 ∘F11\,^\circ\text{F}. A question asks: "How much did the
temperature rise?" Which value correctly answers this question?

0 of 9 answered

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