You could try estimation to get an idea of the magnitude of the answer.
Estimating the answer helps you to know if you placed the decimal point correctly in the sum because you can quickly check if your estimated answer matches closely with the actual answer. If they are similar, it suggests that the decimal point was placed correctly. If they are significantly different, it may indicate an error in placing the decimal point.
i dont know
The decimal that's greater is .57 because it has the least amount of numbers.
If two decimal numbers have x and y digits after the decimal point respectively, then their product has (x + y) digits after the decimal point.
Decimal numbers
"You have to count the spaces to the right to know how many spaces you have to put."
There are infinite numbers between those two numbers... But if you wanna know numbers that only have two decimal places, then they are 4.32 and 4.33
If two numbers, P and Q, have x and y digits after the decimal point respectively, then P*Q has (x+y) digits after the decimal point.
4.2
i really dont know. figure it out or ask a math geek
Decimal is mainly used in trade or to buy things . Even the gas pump shows two set of decimal numbers . Decimal numbers are commonly used in areas like finance , medicine and construction when measuring units like currency , mass and distance .
Since there are an infinite number of decimal numbers, it is impossble to know what the next number in the sequence will be. Rounded to a single decimal place, -0.9 + 0.1 = 0.8.