What is 12815 − 7 + 715 + 15? Simplify your answer.
12815 - 7 + 715 + 15 = 13538
How should you group the following expression to make it easiest to add? 18 − 949 + 79 − 8
To make it easiest to add, you should group the expression as follows: (18 + 79) - (949 + 8)
What should you do if a place value is missing a number
If a place value is missing a number, you can typically assume that the missing number is zero. However, it is always important to clarify or verify with the given information or context to ensure accuracy.
