Advertisements
Advertisements
Question
49 + (−27) = ?
Options
-73
73
22
none of these
Advertisements
Solution
22
49 + (−27)
= 49 − 27
= 22
APPEARS IN
RELATED QUESTIONS
A water tank has steps inside it. A monkey is sitting on the topmost step (i.e., the first step). The water level is at the ninth step.
1) He jumps 3 steps down and then jumps back 2 steps up. In how many jumps will he reach the water level?
2) After drinking water, he wants to go back. For this, he jumps 4 steps up and then jumps back 2 steps down in every move. In how many jumps will he reach back the top step?
3) If the number of steps moved down is represented by negative integers and the number of steps moved up by positive integers, represent his moves in part (i) and (ii) by completing the following; (a) − 3 + 2 − … = − 8 (b) 4 − 2 + … = 8. In (a) the sum (− 8) represents going down by eight steps. So, what will the sum 8 in (b) represent?
Given below are the temperatures in some cities. Write to them using the proper signs.
| Place | Shimla | Leh | Delhi | Nagpur |
| Temperature | 7°C below 0° | 12°C below 0° | 22°C above 0° | 31°C above 0° |
Add: –5 + ( –2)
Write all integers between: -7 and -5
Find the sum of: −389 and −1032
Find an integer a such that: −8 + a = 0
Multiply: −238 by −143
Simplify: (–27) × (–16) + (–27) × (–14)
Divide: −80 by 16
Fill in the blank using <, = or > :
–10 ______ –11
