to round down
- phrasal verb
- /raʊnd daʊn/
- Specialized
- But I did try to be honest, and I erred on the side of rounding up instead of rounding down.
I want to know what is the previous I want to round up or round down.
- I want to know what is the previous I want to round up or round down.
- It's a three stars, maybe higher, but I'm going to round it down to a three, I think, because I really want to love the series more than I have been.
- I'm going to round it down up to three.
Examples
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I am really hoping that when the final count is certified, Romney's total will go down enough that it will round down to 47.
Blog text (22) -
At least when I went to school, if you were going to round up or down, the cutoff was 5 and over went to the next higher level.
Blog text (28) -
Kind of like Paul Ryan running a marathon in 4 hours plus, but he rounds the figure down to 3 hours 50?
Blog text (26) -
Okay, let's do the math of what their graph claims they found in 2000; we'll round down to give you the benefit.
Blog text (16) -
Well, for each item in a set, we rounded down its value after this multiplication, right?
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Let's round that down to $174 to make the math work out more smoothly.
Blog text (14) -
To the extent that hospitals use reliable staffing standards, many frequently employ the strategy of rounding down instead of rounding up.
Academic text (1994) -
We should round down the total cost to make it easier to pay.
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To simplify the calculation, let's round down the number to three.
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For your budget, you can round down any cents to ensure you stay within limits.
Surface Forms
Morphology
The sense 'to reduce a number to the nearest lower whole or specified place' is directly composed from 'round' (adjust a numeric value) plus 'down' (to a lower level), so a learner who knows both words can infer the operation. This verb+particle pattern is productive and cross-linguistically familiar in numerical contexts, making the MWE immediately understandable to a B1 learner.
Etymology
The phrasal verb round down comes from the image of round (making a number simpler) and down (toward a smaller value); imagine pushing a number down to the nearest whole number. So, it means 'to reduce a number to the nearest lower whole number'.