Numbers & the number system

Negative numbers

Name: ______________________________Date: ______________Score: ______ / 20

1.
How do we say the number −6?
1. Anegative six
2. Bsix
3. Cminus sixty
2.
−6 is a negative number.
True False
3.
The temperature in England is 11 °C. The temperature in Iceland is 15° colder. What is the temperature in Iceland?
1. A−4 °C
2. B4 °C
3. C26 °C
4.
The temperature in a town was 5 °C. It dropped by 9 °C overnight. What was the lowest night-time temperature?
°C
5.
Which temperature is the coldest: −6 °C, 0 °C, 1 °C or −2 °C?
1. A1 °C
2. B−2 °C
3. C−6 °C
6.
What temperature is 6 degrees warmer than −4 °C?
°C
7.
What temperature is 5 degrees less than 1 °C?
°C
8.
What temperature is 3 degrees warmer than −2 °C?
°C
9.
What temperature is 3 degrees cooler than 0 °C?
°C
10.
What temperature is 5 degrees higher than −1 °C?
°C
11.
Marcus says, '−5 °C is warmer than −4 °C because 5 is bigger than 4.' Is Marcus correct?
True False
12.
Which is warmer, −4 °C or −5 °C?
1. A−4 °C
2. B−5 °C
3. Cthey are the same
13.
The temperature in Iceland is −1 °C. The temperature in Mongolia is 31° colder. What is the temperature in Mongolia?
°C
14.
What temperature is 5° warmer than −1 °C?
°C
15.
What temperature is 10° cooler than 0 °C?
°C
16.
Put these temperatures in order, starting with the coldest.
Write the order (coldest first) in the boxes:
- ?3 °C
- ?−6 °C
- ?−2 °C
17.
Which number is greater than −4 and less than 0?
1. A−6
2. B−2
3. C1
18.
0 °C is colder than −3 °C.
True False
19.
−2 is greater than −5.
True False
20.
On a number line, which number is furthest to the LEFT: −3, −1 or −7?
1. A−1
2. B−3
3. C−7

Answer key

Numbers & the number system — Negative numbers

1.A. negative six
2.True
3.A. −4 °C
4.-4 °C
5.C. −6 °C
6.2 °C
7.-4 °C
8.1 °C
9.-3 °C
10.4 °C
11.False
12.A. −4 °C
13.-32 °C
14.4 °C
15.-10 °C
16.−6 °C, −2 °C, 3 °C
17.B. −2
18.False
19.True
20.C. −7