in the problem 15 + 37=52, show how to make ONE addend the next tens number. Complete the new addition sentence __+__=__????

40+12

How to make one addennd the next tens number complete the new addition sentence

20+40=60

30+50=80

To make one addend the next tens number, you need to add 10 to one of the addends while subtracting 10 from the other addend.

Let's start with the original addition problem: 15 + 37 = 52.

To make one addend the next tens number, we'll add 10 to 37 and subtract 10 from 15.

37 + 10 = 47

15 - 10 = 5

Now, we have a new addition sentence: 5 + 47 = __

To find the sum, we add 5 and 47:

5 + 47 = 52

Therefore, the new addition sentence is 5 + 47 = 52.