Question

Please help I will give brainliest!

Answer 1

Answer:

The correct answer is B. 30.

Step-by-step explanation:

538 - 509 = 29

Since we need to round this to the nearest tens place, that means we need to round it to 10, 20, 30, etc.

When rounding a number, you look at the last number in it. If it is a 5 or higher, you round up the number before it by 1. If it is a 4 or lower, the number before it stays the same and the lowest number turns into a 0.

Since 9 is higher than 5, the 2 in 29 will turn to a 3, and the 9 will turn into a 0.

Therefore, the correct answer is B. 30.

Hope this helps! :D

Answer 2

Answer:

30

Step-by-step explanation:

538 = 540

509 = 510

40 - 10 = 30