Question

Show how to make one addend the next tens number. Complete the new addition sentence 26+27=?
Is it 53 (10+43=53)

Answer 1

26+27 = 53

26 and 27 are both addends. The question asks to make one addend move up to the next ten's number.


27 + 3 = 30
26 - 3 = 23

so,

30+23 = 53


or

26+4=30
27-4 = 23

so,
30+23 = 53


What you wrote is mathematically correct, but that's not what the question is asking.

26 and 27 are both closes to 30, so you know you have to have that in your new addition sentence.

Answer 2

28+58