you need to show the data first
Answer: 13 and 8
Step-by-step explanation:
13+8=21
13-8=5
All I did was trial and error. Plus, it helps to set up an equation : x+x=21, x-x=5
Answer:
I think it's D
Step-by-step explanation:
Because all of them are true
The answer to the question is equal to 16
Because for example 349+567 is something you need to regroup.You start by the ones.9+7=16. You don't always need to regroup though
