106 practice questions covering The Other Side of Zero, organised into 1 topics.
106 questions include a written explanation.
Pick a topic below, or try the samples first.
Starting at $-2$ on the number line, which move lands on $-9$?
A$7$ steps to the right
B$11$ steps to the left
C$7$ steps to the left
D$9$ steps to the left
Show answer and explanation
Correct answer: C - $7$ steps to the left
Going from $-2$ to $-9$ means decreasing by $7$, which is $7$ steps left. Moving right would increase the value, and $9$ steps left would reach $-11$.
Q2
medium
What is $(-12) + 12$?
A$-24$
B$0$
C$12$
D$24$
Show answer and explanation
Correct answer: B - $0$
An integer and its opposite cancel exactly, so the sum is $0$. Answering $24$ ignores the minus sign and adds the sizes.
Q3
medium
A shopkeeper makes a profit of ₹$300$ on Monday and a loss of ₹$450$ on Tuesday. What is the overall result?
AA profit of ₹$150$
BA loss of ₹$150$
CA profit of ₹$750$
DA loss of ₹$750$
Show answer and explanation
Correct answer: B - A loss of ₹$150$
Writing profit as $+300$ and loss as $-450$ gives $300 + (-450) = -150$, a loss of ₹$150$. Adding the amounts without signs would wrongly give ₹$750$.
Q4
medium
A thermometer reads $0^\circ$C. What does this mean?
AThe temperature is at the freezing point of water, the chosen zero of the scale
BThe thermometer is broken
CThere is no temperature
DIt is the coldest possible temperature
Show answer and explanation
Correct answer: A - The temperature is at the freezing point of water, the chosen zero of the scale
The Celsius scale sets zero at the freezing point of water, so $0^\circ$C is a real temperature. Colder readings exist below it, shown as negative numbers.
Q5
easy
Subtracting an integer is the same as
Amultiplying by $-1$ and then subtracting
Bignoring its sign
Cadding its opposite
Dadding the same integer
Show answer and explanation
Correct answer: C - adding its opposite
The rule $a - b = a + (-b)$ turns every subtraction into an addition. Adding the same integer would give a different answer, and signs may never simply be ignored.
Q6
easy
Which integer comes immediately after $-5$?
A$-4$
B$4$
C$5$
D$-6$
Show answer and explanation
Correct answer: A - $-4$
Moving one step right from $-5$ gives $-4$, which is greater. Moving left would give $-6$, which comes before rather than after.
Practice the full The Other Side of Zero bank free
All 106 questions with timed practice, instant scoring, and explanations. Free forever.