Rounding
WHEN TO ROUND
When the question asks:
● “Estimate how many…”
● “About how many…”
THE ROUNDING POEM
Find your number
Look right next door →
4 or less, just ignore
5+ add one more
TEST OUR POEM
Round the number to the nearest
10’s place.
*Find the number.
67
*Look right next door.
TEST OUR POEM
Round the number to the nearest
10’s place.
Is
7<4?
67
*4 or less just ignore
(Is next door less than 4?
No? Let’s go to our next line of our poem.)
TEST OUR POEM
Round the number to the nearest 10’s place.
*5+ add one more.
+1
67
____
7
More than 5
FINISHING UP
Round the number to the nearest 10’s place
Everything after the rounded number
becomes a “0”.
+1
6 7
___
70
67 rounded to the nearest 10’s place is
70
Let’s Practice
Round the number to the nearest 10’s place.
83
Don’t forget the Poem;
TRY IT ON YOUR
OWN FIRST.
ROUND THE NUMBER TO THE
NEAREST 10’S PLACE.
*Find the number.
The 8 is in
the 10’s
place.
83
*Look right next door.
ROUND THE NUMBER TO THE
NEAREST 10’S PLACE.
*4 or less just ignore
83
80
So…When we round the
number after becomes “0,”
Right???
LET’S DO SOME MORE!
Round the number to the nearest 10’s
place.
*1. Find the number
560
562
*2. Look Right next door
Let’s ignore
it, and
change the
“2” to a “0”
*3. 4 or less just ignore
PRACTICE ON YOUR OWN
PAPER
Round to the nearest 10’s place.
66
1 3 7
73
34
7 24
PRACTICE ON YOUR OWN
PAPER
Round to the nearest 10’s place.
70
140
70
30
720
W A Y T O G O!
OH N O!
Say the Poem (in your head) and
try again.
ROUND TO THE NEAREST 10’S
PLACE
74
80
75
70
ROUND TO THE NEAREST 10’S
PLACE
27
30
20
25
ROUND TO THE NEAREST 10’S
PLACE
44
45
40
50
ROUND TO THE NEAREST 10’S
PLACE
70
75
100
70
ROUND TO THE NEAREST 10’S
PLACE
101
110
101
100
ROUND TO THE NEAREST 10’S
PLACE
34
30
40
35
ROUND TO THE NEAREST 10’S
PLACE
385
385
390
380
ROUND TO THE NEAREST 10’S
PLACE
792
790
795
890
ROUND TO THE NEAREST 10’S
PLACE
124
120
125
220
ROUND TO THE NEAREST 10’S
PLACE
39
39
30
40
ROUND TO THE NEAREST 10’S
PLACE
75
75
70
80
ROUND TO THE NEAREST 10’S
PLACE
34
35
40
30
ROUND TO THE NEAREST 10’S
PLACE
75
80
70
90
ROUND TO THE NEAREST 10’S
PLACE
22
32
22
20
ROUND TO THE NEAREST 10’S
PLACE
92
95
90
100
ROUND TO THE NEAREST 10’S
PLACE
12
22
10
20
NOW YOU PRACTICE.
ROUND THESE NUMBERS.
25
78
36
158
689
324
30
80
40
200
700
300
Round this number to the
nearest ten thousand.
Find your number.
3 6 8,9 7 1
Circle the number in the
ten thousand’s place.
Round this number to the
nearest ten thousand.
Look right next door.
3 6 8,9 7 1
Draw an arrow to the right of
the number.
Round this number to the
nearest ten thousand.
4 or less, just ignore.
3 6 8,9 7 1
8 is larger than 4 so go to the
next line of the poem.
Round this number to the
nearest ten thousand.
5 or more, add 1 more.
+1
3 6 8,9 7 1
Add 1 to the 6.
Round this number to the
nearest ten thousand.
5 or more, add 1 more.
3 7 0,0 0 0
Add 1 to the 6 and all the
numbers to the right of the 7
become 0’s.
The Answer
368,971 rounded to the
nearest ten thousand is
3 7 0,0 0 0
Round this number to the
nearest thousand.
Find your number.
3 5, 3 2 7
Circle the number in the
thousand’s place.
Round this number to the
nearest thousand.
Look right next door.
3 5, 3 2 7
Draw an arrow to the right of
the number.
Round this number to the
nearest thousand.
4 or less, just ignore.
3 5, 3 2 7
Since 3 is less than 4 we do
not change the 5.
Round this number to the
nearest thousand.
4 or less, just ignore.
3 5, 0 0 0
Change the numbers to left of
5 to 0’s.
The Answer
35,327 rounded to the
nearest thousand is
3 5, 0 0 0