Rounding

1
Rounding
Click Me to Practice
2
When To Round

• When the question asks
• Estimate how many
• About how many
• Can you think of anymore?

3
The Rounding Poem

• Find your number
• Look right next door ?
• 4 or less, just ignore
• 5 add one more

4
Test Our Poem

• Round the number to the nearest
• place
• Find the number
• 6 7

10s
Look right next door
5
Test Our Poem

• Round the number to the nearest 10s place
• 6 7
• 4 or less just ignore

Is 7lt4?
(Is next door less than 4?
No? Lets go to our next line of our poem)
6
Test Our Poem

• Round the number to the nearest 10s place
• 5 add one more
• 6 7

1 ____
More than 5
7
7
Finishing Up

• Round the number to the nearest 10s place
• Everything after the rounded number becomes a
  0
• 6

1 ___
7
0
7
8
7 0
67 rounded to the nearest 10s place is 70
9
Lets Practice
Round the number to the nearest 10s place
8 3
Dont forget the Poem TRY IT ON YOUR OWN FIRST
10
Round the number to the nearest 10s place
Find the number
The 8 is in the 10s place
8 3
Look right next door
11
Round the number to the nearest 10s place
3 lt 4 (3 is less than 4)
4 or less just ignore
8 3
8 0
SoWhen we round the number after becomes 0
Right???
12
Lets do some MORE!
Round the number to the nearest 10s place
1. Find the number
5 6 2
0
5 6
Lets ignore it, and change the 2 to a 0
2. Look Right next door
3. 4 or less just ignore
13
Practice on your own paper
Round to the nearest 10s place
6
3
6
7
0
0
7
4
3
0
4
7 2
0
7
3
1
2
0
14
W a y t o G o!
15
Oh No!

• Say the Poem (in your head) and try again.

16
Round to the nearest 10s Place
7 4
75
70
80
17
Round to the nearest 10s Place
2 7
3 0
2 5
2 0
18
Round to the nearest 10s Place
44
45
50
40
19
Round to the nearest 10s Place
70
75
100
70
20
Round to the nearest 10s Place
101
110
101
100
21
Round to the nearest 10s Place
34
30
40
35
22
Round to the nearest 10s Place
385
385
390
380
23
Round to the nearest 10s Place
792
790
800
795
24
Round to the nearest 10s Place
124
125
120
125
25
Round to the nearest 10s Place
39
39
30
40
26
Round to the nearest 10s Place
7 5
75
80
70
27
Round to the nearest 10s Place
3 4
3 5
4 0
3 0
28
Round to the nearest 10s Place
7 5
7 0
7 5
8 0
29
Round to the nearest 10s Place
2 2
3 0
2 0
3 2
30
Round to the nearest 10s Place
9 2
100
9 0
9 5
31
Round to the nearest 10s Place
1 2
1 2
1 0
2 0