0
Still curious? Ask our experts.
Chat with our AI personalities
Taiga
Rafa
CoachAdd your answer:
Earn +20 pts
Do you round both numbers of estimating?
Yes but, if you can, you should try to round one up and the other down. Unless that results in rounding well away from the number. For example, 48*62 Exact answer = 2976 If you round 48 up to 50, 62 down to 60 Estimate = 50*60 = 3000 (estimation error = +0.8%) But if you had 48*68 Exact answer = 3264 Round up and down: 50*60 = 3000 (estimation error = -8.1% ) Round down and up: 40*70 = 2800 (estimation error= -14.2%) Round up and up: 50*70 = 3500 (estimation error = +7.2%) The last still has a large error but it is the smallest of the these.
Round 22164.36113 to three decimal places?
The general rule in rounding up is that that numbers of 5 and above carry forward as 1 onto the next column while numbers of 4 and below are discarded. So, 22164.36113 would round to 22164.361 to three decimal places.
How do you convert 0.13998 to three decimal places?
round to 0.140 the ending numbers make you round up and if you must have 3 decimal places keep one ending zero
Why do we sometime round up or down numbers?
Sometimes you round up or round down numbers to get close to the correct answer so that you can make sure that your answer is right. If your answer is not close to the rounding down of the numbers you are using then you need to look it over and do it again.
How do you round numbers that end in 5?
up, so you would round 3.5 to 4.
