(Double plus 1 of 5) plus 5 = 16
Double plus 1 of (5 plus 5) = 21
Yes, the sum of 5+5 is a double number.
1 plus 1 equals one fact
a fat person
--5 = 5 because a double minus becomes a plus so --5 is the same as +5
Double Dutch
Note that the reason there exists a technique called multiplication is so that we do not have to perform tedious and lengthy series of addition such as the one you have presented. So, you have given us 24 of the number 5 to add. 24 x 5 = 120. (Addition form) 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 = 120
for 5+5+5=550, you'll have to add one line to the plus so the plus will look like a four. 5+545=550
1/5 + 3/5 + 1/5 = 1
Double Espresso - 2010 Plus One 1-4 was released on: USA: 1 November 2010
Two solutions: One with math, one with common sense. 1). 5 + x = 2x. Subtract x from both sides of the equation: 5 = x2). If adding 5 to something made it double, what do you think it was before you added the 5 ?
1 plus 1 =2 + 1=3+1=4+1=5+1=6 but in that caase it'd have 5 plus' and in the question it only has 4 so this is rubbish
One method is (10×4)+(5×3) = 55 (or mentally add up from left to right).