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8 February, 07:11

Mariel thinks the tens digit goes up by 1 in these numbers. Do you agree? Explain. 864,865,866,867,868,869

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Answers (2)
  1. 8 February, 07:44
    0
    disagree, its the unit number that goes up by 1
  2. 8 February, 09:30
    0
    No, because it is not the tens digit that goes up by 1 in these numbers, it is the unit digit.

    Step-by-step explanation:

    It is important to know the concepts of units, tenths and cents.

    For example

    1 = 1 unit

    10 = 1*10 + 0 = The tens digit is one the unit digit is 0

    21 = 2*10 + 1 = The tens digit is two and the unit digit is 1.

    120 = 1*100 + 2*10 + 0 = The cents digit is 1, the tens digit is two and the unit digit is 0.

    So

    Adding 1 is the same as the unit digit going up by 1.

    Adding 10 is the same as the tens digit going up by 1.

    Adding 100 is the same as the cents digit going up by 1.

    In this problem, we have that:

    864,865,866,867,868,869

    Each value is the 1 added to the previous value, that is, the unit digit goes up by 1.

    Mariel thinks the tens digit goes up by 1 in these numbers. Do you agree?

    No, because it is not the tens digit that goes up by 1 in these numbers, it is the unit digit.
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