1.2 estimation
Post on 13-May-2015
929 Views
Preview:
DESCRIPTION
TRANSCRIPT
1.2 Estimation with Whole Numbers
Estimate sums, differences, products, and quotients of whole numbers.
Remember!
When you round, you
look to the digit to the
right.
5 or greater – round UP
4 or less – round DOWN
Clustering - estimating a sum when the addends are about the same.
1802 + 2182 + 1999
2000 + 2000 + 2000
Underestimate –
an estimate that is less than the exact answer.
Overestimate –
an estimate that is more than the exact answer.
Image Attributions
Slide 1: Image: 'three_feet' www.flickr.com/photos/26084283@N00/72697229
Slide 2: Image: 'stickynote' www.flickr.com/photos/23963249@N02/2325865367
Slide 3: Image: 'Gathering roses( bright orange)' www.flickr.com/photos/28481088@N00/182314313
Slide 5: Image: 'Sun On The Petals' www.flickr.com/photos/98799884@N00/302782756
Slide 6: Image: 'Sunset on the Charles' www.flickr.com/photos/64165252@N00/141931319
top related