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Minus=46-28=18The correct result is: 64-18=46 Because the minus is constant in the wrong calculation process, the minus is not wrong.
Subtraction is a basic arithmetic operation, and the operation of subtracting another quantity from one quantity is called subtraction, and the result becomes a difference; The sum of two additions is known to be the sum of one of the additions, and the operation of finding the other addition is called subtraction. The symbol for subtraction is "-" read as a minus sign. Used to calculate the reduction!
Subtraction doesn't have to be hard calculations, but it can also be simple calculations. This method is suitable for children in preschool and first grade. For example: 24-8=16
Think of it this way: borrow 14-8, first use 10-8=2, then use 2+4=6, the difference must be 6, and the ten digit is simple. That is to say, after borrowing a place, remove the number of the single digit and subtract it first, and then use the subtracted number to add the number of the subtracted single digit, and it is not difficult to have ten digits.
However, the premise is that the subtracted single digit must be smaller than the subtracted single digit in order to be simple.
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Answer: It turns out that the average of the four numbers is.
Let these four numbers be a, b, c, d
From the question: (a+b+c) 3+c]+[a+c+d) 3+b]+[a+b+d) 3+c]+[b+c+d) 3+a]=96+102+110+104
Simplification yields: 2(a+b+c+d)=412
So: a+b+c+d=206
The average of these four numbers is: (a+b+c+d) 4=206 4=
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The bending value of this formula is 1, and the focus is to turn sin170° into sin10°, cos10°-1-(cos170°) 2) into cos10°-sin10°, and then square (1-sin20°) to serve the ear.
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Because there are two sides that are equal, this triangle is an isosceles triangle, and because there is an angle of 60 degrees, according to "an isosceles triangle with an angle of 60 degrees is an equilateral triangle", this triangle is an equilateral triangle, so the other two angles are 60 degrees.
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(=24×4÷12
8 cm. The square edge is 8 cm long.
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Wire length: (
I make it into a cube frame edge length is.
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