Question

The temperature on Sunday was $-{25}^{\circ }\text{C}$. The temperature on Monday was ${12}^{\circ }\text{C}$ more than the temperature on Sunday. What was the temperature on Monday?

• A. $-{13}^{\circ }\text{C}$
• B. ${13}^{\circ }\text{C}$
• C. ${37}^{\circ }\text{C}$
• D. $-{37}^{\circ }\text{C}$

Answer 1

The correct option is A $-{13}^{\circ }\text{C}$

The temperature on Monday was $-{25}^{\circ }\text{C}+{12}^{\circ }\text{C}$

Step 1: Write the absolute values of both integers.
$|-25|=25\&|12|=12$

Step 2: Subtract both the absolute values.
$25-12=13$

Step 3: Put the original sign of the larger number to the difference.

$\because$ 25 is the larger number and its original sign in the given question is negative i.e.$-{25}^{\circ }\text{C}$
$\therefore$ $-{25}^{\circ }\text{C}+{12}^{\circ }\text{C}=-{13}^{\circ }\text{C}$