in ones digit arithmetic to define a+b you take the integer a+b and drop all but the one's digit (same for a x b).
1+2+3+4+5+6+7=8 because you drop all but the one's digit.
(a)(a-2)(a+2)(2a) It can be: 2044 3156 4268
The first (left most) digit is the number of tens and the other is the number of ones. So 57 = 5 tens plus 7 ones = 50 + 7 = 57
Add in base two arithmetic 1101 + 1110 + 101 =
44
the plus sign (+)
28
28, but that's two digits.
(a)(a-2)(a+2)(2a) It can be: 2044 3156 4268
it is divisible by 4 if:The tens digit is even, and the ones digit is 0, 4, or 8.If the tens digit is odd, and the ones digit is 2 or 6.Twice the tens digit plus 4.
Go to ones digit 2 plus 2 is 4 Go to tens digit 1 plus 1 is 2 So the answer is 24
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The first (left most) digit is the number of tens and the other is the number of ones. So 57 = 5 tens plus 7 ones = 50 + 7 = 57
There are 8000 ones in 8000. ------------------------ The ones column is the column before the decimal point - in this case the decimal point is hiding at the end of the number and the ones column is the last digit. The ones column contains a 0 therefore there are no ones in 8000 8000 is eight thousands plus no hundreds plus no tens plus no ones.
6
Add in base two arithmetic 1101 + 1110 + 101 =
This will be in binary arithmetic, i.e. base 2 arithmetic.
495