Advertisements
Advertisements
Question
Fill in the blanks.
−23 − (?) = 15.
Advertisements
Solution
Let the required number be x.
−23 − x = 15
=> −23 = 15 + x
=> 15 + x = −23
=> x = −15 −23
=> x = −38
APPEARS IN
RELATED QUESTIONS
Add: -73 and -687
Find an integer a such that: a + (−4) = 0
Subtract: −2768 from −287
Which of the following statements are true and which are false?
The product of a positive integer and a negative integer is negative.
Which of the following statements are true and which are false?
The product of two negative integers is a negative integer.
Simplify: 30 × (–22) + 30 × (14)
Write 'T' for true and 'F' for false for the following:
0 is neither positive nor negative.
The integer ‘5 units to the right of 0 on the number line’ is ______.
An atom changes to a charged particle called ion if it loses or gains electrons. The charge on an ion is the charge on electrons plus charge on protons. Now, write the missing information in the table given below:
| Name of Ion | Proton Charge | Electron Charge | Ion Charge |
| Hydroxide ion | +9 | – | –1 |
| Sodium ion | +11 | – | +1 |
| Aluminium ion | +13 | –10 | – |
| Oxide ion | +8 | –10 | – |
Write two integers such that one is smaller than –11, and other is greater than –11 but their difference is –11.
