Show how to make one addend the next tens number. Complete the new addition sentence 26+27=?

Is it 53 (10+43=53)

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.

28+58

To make one addend the next tens number, you can first find the nearest tens number to one of the addends. In this case, the nearest tens number to 26 is 30.

Next, you need to find the difference between the nearest tens number (30) and the original addend (26). The difference is 4.

Now, add the difference to the other addend (27). So, you would add 4 to 27.

27 + 4 equals 31.

Therefore, the new addition sentence is 26 + 27 = 53.

To make one addend the next tens number, you increase it by 1 and decrease the other addend by the same amount. In the given example, you start with the original addition sentence 26 + 27 and make 26 the next tens number.

To do this, you first identify the nearest tens number greater than 26, which in this case is 30. Next, you increase 26 by 4 to make it 30 (add 4 to both the addends to maintain equality). Simultaneously, you decrease 27 by the same amount, which is 4, to make it 23.

Now, the modified addition sentence becomes 30 + 23. Simplifying this equation gives the correct answer, which is 53.

So, the complete new addition sentence is: 26 + 27 = 30 + 23 = 53.