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When you are estimating sums and differences of fractions by rounding how do you know to round it to zero half or one?
Wiki User
∙ 14y ago
Let's say that you are rounding 2/5. You find half of 5 which is 2.5. Then you see if 2 is closer to 0, 2.5/5, or 1. It is closer to 2.5, so you would say that 2.5 is half of five, so your answer is 1/2. If you are doing 1/7, 1 is obviously closer to 0, so your answer would be 0.
Wiki User
∙ 14y ago
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What is the rounding estimte of 9x54?
Multiplication estimating is making the terms a simpler but more inaccurate number to multiply. Round 9 to 10 and 54 to 50. 9*54=486 10*50=500
How is estimating quotients different from estimating products?
Normally when estimating quotients you should round both numbers in the same direction whereas for products you should round the two numbers in opposite directions.
How do you round centimeters?
The answer will depend on what you are rounding them to.
When rounding 879 which number helps decide whether to round up or down?
It depends on what you are rounding to. If rounding to the nearest ten, the 9 at the end decides which way to round it, and being a 9, it rounds up. If rounding to the nearest hundred, it was is the 7. If rounding up to the nearest thousand, it is the 8.
How do you round 2.268?
The depends to what decimal place you are rounding the number.If you are rounding to hundredths, it will be 2.27If you are rounding to tenths, it will be 2.3If you are rounding to the nearest whole number, it will be 2.
How are estimating and rounding different?
Estimating is a guess that should be close to the answer. Round is rounding a number up to the nearest ten, hundred. Example $345.89 round to the nearest dollar is $345.
When is estimating helpful?
because it is helpful so u can round to finds answer also a lot people like rounding.
Estimating fractions to the nearest whole number?
If the fraction is less than half, round down. If the fraction is half or greater, round up.
When estimating three digit numbers how do you round to the nearest tenth?
To round any number, look at the digit to the right of the place you are rounding to. If the digit is 5 or more, change the digit in the place you are rounding to to the next higher digit. If the digit to the right of the place you are rounding to is less than 5, leave the digit in the place you are rounding to as it is. Change all digits to the right of the place you rounded to to zeros.
How do you round fractions?
you round fractions by rounding up or down, you can decide to do this when you look at the numerator and decide if it is half of the denominator, if it is half or more than half, you round up. If it is less than half you round down. Another way you can round fractions is dividing the top number by the bottom number (with a calculator), then if the decimal part is 5 or more, round up! (if the decimal is less than 5, round down.)
What is the difference in what you have to do for rounding and estimating?
Estimating is just an educated guess. For example, if you have to solve the problem 102.17 plus 266.18, you would make an educated guess. An educated guess would be 100+ 270 which equals 370. When you are rounding, you will usually get instructions to round a certain number. It is knowing the exact value, but finding the nearest whole number. For example: Round to the nearest hundredth 4.6781 If you are rounding to the nearest hundredth, you are trying to round the number 8, since it is in the hundredths spot. To round 8, look at 1. Is it greater than 5? If the number is greater than 5, round the number up by 1. If the number is smaller than 5, the number remains the same.
What is the difference between a rounded number and an estimated one?
Estimating will frequently be the same as rounding, but not necessarily. Rounded numbers have specific rules about where they round to. These don't apply to estimation. 46 will always round up to 50, but it may be advantageous to estimate it at 45.
What is the rounding estimte of 9x54?
Multiplication estimating is making the terms a simpler but more inaccurate number to multiply. Round 9 to 10 and 54 to 50. 9*54=486 10*50=500
What does 1.726 round to?
If you are rounding to 100ths it is 1.73 . If you are rounding to 10ths it is 1.7 . If you are rounding to integers it is 2 .
How is estimating quotients different from estimating products?
Normally when estimating quotients you should round both numbers in the same direction whereas for products you should round the two numbers in opposite directions.
What does 84651 round to?
It depends on what you are rounding by. If you are rounding by ten-thousands=80000 If you are rounding by thousands=85000 If you are rounding by hundreds=84700 If you are rounding by tens=84650
What would you round 3343 to?
Depends on how much you are round to: For example, rounding to nearest 10 = 3340 Rounding to nearest 100 = 3300 Rounding to nearest 1000 = 3000
