This is because we count in tens so that the place value of a digit is ten times the place value of the digit to its right.
This is because we count in tens so that the place value of a digit is ten times the place value of the digit to its right.
You do not need to align decimal points when multipylng. You multiply the two numbers ignoring the decimal point but ensuring that any trailins 0s are present. The number of digits after the decimal point in the answer is the sum of the number of digits after the decimal points in the two multiplicands.
right
When you are multiplying a number by 10, you move the decimal point one place to the right. If you are multiplyingby 1,000, you move it 3 places to the right.You move the decimal point to the left when you are dividing by a multiple of 10.
Shift the decimal point three places to the right. 6.5 x 1000 = 6500
It moves the decimal point two places to the right.
This is because we count in tens so that the place value of a digit is ten times the place value of the digit to its right.
This is because we count in tens so that the place value of a digit is ten times the place value of the digit to its right.
You do not need to align decimal points when multipylng. You multiply the two numbers ignoring the decimal point but ensuring that any trailins 0s are present. The number of digits after the decimal point in the answer is the sum of the number of digits after the decimal points in the two multiplicands.
why does multiplying numbers by ten move the decimal point to the right
Simply add one ZERO to the end of the number. If the number is a decimal, then move the decimal point one postion to the right.
right
Multiplying a whole number by 10 adds a zero onto the end of the number. For example, 7 x 10 = 70.Multiplying a decimal number by 10 moves the decimal point one place to the right. For example, 3.75 x 10 = 37.5.
Multiplying a real number by a positive power of ten moves the decimal point that number (the exponent) of places to the right. Multiplying by a negative power of ten moves it to the left. For example, the -3 power of 10 is 1/1000; multiplying by that moves the decimal point 3 places to the left.
When you move a decimal point to the right you are multiplying a number by 10. For example, take 3.4. If you move the decimal point to the right you get 34. This is the same as: 3.4x10 = 34. Reversing this, you are dividing by 10 by moving the decimal point to the left. For example, take 73. If you move the decimal point to the right you get 7.3. This is the same as: 73/10 = 7.3. If you move a decimal point 2 spaces to the right, you are multiplying by 100, or more generally if you move the decimal point n spaces to the right, you are multiplying by 10^n.
It you are multiplying by a number greater than one (or, equivalently, dividing by a number less than one) then the decimal would either stay put or move to the right.
You need to add up the number of digits to the right of the decimal to find the number of digits in the answer. If the first factor has 2 digits to the right of the decimal point and the second factor has 3, the final answer will have 5 digits to the right of the decimal point.