Answer: 5
Step-by-step explanation:
8+(-3)
=8-3 ⇔ you don't need to change signs when it is positive(+) outside the parenthesis
=5 ⇔ subtraction
#CarryOnLearning
The 1st figure is correct, the 4th one seems very similar to the 1st one. But the red shape is closer to line k. So the 1st one is correct
I think the answer is -7x(-7)x(-7)
Answer:
1680
Step-by-step explanation:
Considering repeatition is not allowed.
We can use permutation to reach to the required answer.
Consider four digits to be placed in four boxes. Now for the number to be odd, unit digit must be odd. Therefore, unit digit can only be filled by 1, 3, 5,7, or 9. That is 5 ways. Now, other three boxes can be filled with 8, 7 and 6 ways respectively.
Therefore, Total numbers = 5×8×7×6 = 1680
