Upcoming SlideShare
×

# Division, patterns and estimating quotients 10 25-10

2,910 views

Published on

2 Likes
Statistics
Notes
• Full Name
Comment goes here.

Are you sure you want to Yes No
• Be the first to comment

Views
Total views
2,910
On SlideShare
0
From Embeds
0
Number of Embeds
8
Actions
Shares
0
43
0
Likes
2
Embeds 0
No embeds

No notes for slide

### Division, patterns and estimating quotients 10 25-10

1. 1. Division<br />Patterns and Estimating Quotients<br />
2. 2. Arrays<br />
3. 3. Division Math Vocabulary<br />Compatible Numbers<br />Numbers in a problem that are easy to work with mentally.<br />Division<br />An operation that is the opposite of multiplication. It breaks a number up into even groups.<br />Dividend<br />A number that is being divided<br />Divisor<br />The number by which the dividend is being divided<br />Quotient<br />The answer or result of a division problem<br />
4. 4. Dividing Mentally!<br />600 ÷ 6 =<br />100<br />
5. 5. Dividing Mentally!<br />270 ÷ 90 =<br />3<br />
6. 6. Dividing Mentally!<br />25,000 ÷ 500 =<br />50<br />
7. 7. Draw a Picture to Solve<br />92 ÷ 4 =<br />
8. 8. Draw a Picture to Solve<br />78 ÷ 6 =<br />
9. 9. We can Round in Division Too!!!<br />
10. 10. The Puppy Problem<br />
11. 11. Find a Compatible Dividend<br />Estimate 156 ÷ 3<br /> ÷ 3<br />150 ÷ 3 <br /> = <br /> 50<br />We change 156 to 150 because <br />150 and 3 are compatible <br />numbers<br />
12. 12. Find a Compatible Divisor<br />Estimate 3,200 ÷ 90<br />3,200 ÷ 90<br />3,200 ÷ 80<br />=<br />40<br />We change 90 to 80 because 32 and 8 are compatible numbers.<br />
13. 13. Bring to the Nearest Ten<br />Estimate 228 ÷ 43<br />228 ÷ 43<br />228 ÷ 40<br />240÷ 40<br />=<br />6<br />We change the divisor to the nearest 10.<br />We change the dividend to a number that is compatible with 4. Look, It’s easy to divide 24 by 4.<br />
14. 14. Three Ways to Round<br />45 ÷ 6 = 45 ÷ 6 = 45 ÷ 6 = <br />
15. 15.
16. 16. Real-World Problems<br />Exact Answer:<br />12 oz.: __________<br />20 oz.: __________<br />Estimated Answer:<br />12 oz.: __________<br />20 oz.: __________<br />