Year 7 Working with Negative Integers

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The letters A, B, C, and D indicate values on a number line with one unit intervals. The number –3 is indicated by the letter

1 point

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Which two players’ scores differ by 2?

1 point

Mila and Jackie

Greg and Mark

Greg and Tim

Jackie and Mark

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The circles in the model represent positive and negative units. Which equation is true based on the model?

1 point

( –3) + 5 = −2

( –3) + 5 = 2

–3 + (–5) = –2

3 + (−5) = 2

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Which letter on the number line best identifies
the location of −6?

1 point

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A group of hikers climbed from Salt Flats (elevation −55 metres) to Talon Bluff (elevation 620 metres). What is the difference in elevation between Talon Bluff and Salt Flats?

1 point

565 metres

575 metres

665 metres

675 metres

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One morning, the temperature was 5° below zero. By noon, the temperature rose 20°C and then dropped 8°C by evening. What was the evening temperature?

1 point

17° below zero

15° below zero

12° above zero

7° above zero

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Which point on the number line is greater than –4 but less than 0 ?

1 point

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The number midway between –3 and 5 on the number line is

1 point

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Which two temperatures are closest to each other?

1 point

−3°C and −5°C

3°C and −5°C

3°C and −3°C

−3°C and 5°C

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The temperature at midday in Moscow is –11 °C.

By 4 pm, the temperature decreases by 4°C.

By 8 pm, the temperature decreases by another 3°C. What is the temperature in Moscow at 8pm?

1 point

–4°C

–10°C

–12°C

–18°C

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A small submarine started its dive at sea level and descended 30 m per minute. Which integer represents the submarine’s depth after seven minutes?

1 point

–210 m

–23 m

37 m

210 m

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Mikel walks down 5 flights of stairs. Each flight has 8 steps. Which describes Mikel’s descent?

1 point

–5 + 8 = 3

(–5) + (–8) = –13

(–5)(–8) = 40

(–5)(8) = –40

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The temperature is 8° C. As a cold front moves in, the temperature drops 6° C per hour. What is the temperature at the end of 3 hours?

1 point

–26° C

–10° C

5° C

26° C

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