One to one
Three. Count number of zeros. If multiply decimal by 100 move decimal point 2 places, etc.
To calculate 2.54 multiplied by 5, you simply multiply the two numbers together. 2.54 multiplied by 5 equals 12.7. This is because when you multiply a decimal number by a whole number, you multiply the decimal number by the whole number and then adjust the decimal point in the result accordingly.
If you multiply a number by 100%, you are simply multiplying by 1. You can multiply by 100% to change a decimal number or fraction to a percent. (0.25)(100%)=25%. You can also divide by 100% to change a percent to a decimal number. 65%/100%= 65/100 or 0.65.
To express .20 as a whole number, you would multiply it by 100 to shift the decimal two places to the right. This would give you 20 as a whole number. Converting a decimal to a whole number involves removing the decimal point by multiplying the decimal by the appropriate power of 10.
2
The answer depends on what the decimal is.For example, 4 * 3.5 = 14But 4 * 3.6 = 14.4
Often, yes. But it depends on the numbers. For example, if you multiply 1.5 x 2, you get 3 as the answer (whole number). But if you multiply 1.5 x 3, you get a decimal of 4.5
whenever you multiply a whole number by a decimal you get a decimal. 2.9x100=290
Three. Count number of zeros. If multiply decimal by 100 move decimal point 2 places, etc.
you multiply by 2
You usually get another number!
True
Dividing by decimal is different from dividing by whole number as you have to multiply by a number to remove the decimal.
When multiplying a whole number by a decimal with two places, ignore the decimal point and multiply as if you were multiplying two whole numbers. After you get the answer, re-insert the decimal point so that the product has two decimal places.
This is not necessarily true. 2 x 0.55 = 1.1
When multiplying a whole number by a decimal with two places, ignore the decimal point and multiply as if you were multiplying two whole numbers. After you get the answer, re-insert the decimal point so that the product has two decimal places.
All numbers between negative one and zero are negative. When you multiply a number by a negative it becomes negative. Also, all numbers between negative one and zero are decimals. When you multiply a number by a decimal it becomes smaller. Thus, when you multiply a rational number by a number between negative one and zero, it becomes smaller and negative.