Use mental math to simplify.
-8 + 35 + 15
59
49
49
50
42
To simplify -8 + 35 + 15 using mental math, you can follow these steps:
1. Add -8 and 35, which gives you 27.
2. Add 27 and 15, which gives you 42.
Therefore, -8 + 35 + 15 simplifies to 42.
To simplify the expression -8 + 35 + 15 using mental math, you can follow these steps:
1. Start by combining the numbers with the same sign. In this case, we have two positive numbers - 35 and 15. Adding these two numbers gives us 50.
2. Now, we have -8 + 50 left to simplify. Since we have a negative number and a positive number, we can subtract the smaller absolute value from the larger absolute value and keep the sign of the larger number. In this case, the absolute value of -8 is 8, and the absolute value of 50 is 50. As 50 is larger than 8, we subtract 8 from 50, which gives us 42.
So, the simplified expression -8 + 35 + 15 is equal to 42.