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How are adding with 0 and multiplying with 1 alike?
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How are adding 0 and multiplying by 1 alike?
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Multiply a number by 2 to get the same as adding a?
2. multiplying 2 and 2 is the same as adding 2 and 2.
How is multiplying fractions by a whole number is different from adding adding and subtracting fractions with like denominators?
Adding and subtracting fractions can ONLY be done if the denominators are the same; then the calculation is done by adding or subtracting the numerators. Multiplying (and dividing) fractions does not require the denominators to be the same. To divide by a fraction the divisor is inverted (the original numerator becomes the new denominator and the original denominator becomes the new numerator) and then the fractions are multiplied. Multiplying fractions is achieved by multiplying the numerators together AND multiplying the denominators together. A whole number is the same as a fraction with the whole number as the numerator and a denominator of 1, so when multiplying by a whole number the denominator is multiplied by 1 (leaving it the same) and the is multiplication is effectively just multiplying the numerator by the whole number.
What property says that multiplying a sum by a number is the same as multiplying each addend by the number and then adding the product?
Distributive property
Is area adding up all the sides?
No, that's perimeter. Area is multiplying the length times the width.
Is a percent markup adding or multiplying?
multiplying
What is the result of multiplying 28 by 1, then adding 5, then multiplying by 8, then adding 1, then multiplying by 3, and finally adding 8?
The result of the given operations is 697.
What numbers equal 144 with adding and multiplying?
Adding: 100+44 Multiplying: 12*12
How do you find the perimeter and the area of a square?
The perimeter is found by adding the length of each side. The area is found by multiplying the length of the square by the width.
Area surface of a prism?
The surface area of a prism is calculated by adding the area of the walls to the area of the top and bottom. The area of the walls is calculated by multiplying the perimeter of the top by the height of the wall.
What is the result of multiplying 27 by 1 and then adding 4?
The result of multiplying 27 by 1 and then adding 4 is 31.
How do logarithms make scientific calculations easier?
Adding the logs of numbers is equivalent to multiplying the numbers. People think adding is easier than multiplying.
How is floor area computed for houses?
By taking the width and length of each room to calculate the floor area by multiplying them together and adding all the room floor areas together
Do you have to line up the decimal when you are adding?
You have to line up the decimal when adding but not when multiplying. Example: This one is adding 23.56+89.45 23.56 89.45 This one is multiplying 23.54*4.506 23.54 4.506
What is the result of multiplying 32 by 630, then multiplying 27 by 1, and finally adding 4 to the total?
The result of multiplying 32 by 630 is 20,160. Multiplying 27 by 1 gives 27. Adding 4 to the total gives a final result of 20,191.
How are adding subtracting decimals different from multiplying them?
They aren't. The rules are the same as those for adding/subtracting or multiplying integers. Just be careful of the decimal point's location.
