1. Round off 37 to the nearest ten
Rounding Off Decimals
Round off 37 to the nearest ten 10 20 30 40 50 60 90 80 70
100
37 is between 30 and 40

2. 37 40 Round off 37 to the nearest ten Where are the nearest tens?
Rounding Off Decimals
Round off 37 to the nearest ten 37 31 32 33 34 35 36 37 38 39 30 40
Where are the nearest tens?
37 is nearer to 40 than to 30
37 is ? when rounded off to the nearest ten 40

3. Round off 750 to the nearest hundred
Rounding Off Decimals
Round off 750 to the nearest hundred
500
600
700
800
900
1000
750 is between 700 and 800

4. halfway Round off 750 to the nearest hundred 800
Rounding Off Decimals
Round off 750 to the nearest hundred
700
720
740
750
760
780
800
Where are the nearest hundreds?
halfway
750 is halfway between 700 and 800
750 is ? when rounded off to the nearest hundred
800

5. Rounding Off Decimals
Round off 1.4 to the nearest whole number 1 2
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
Where are the nearest whole numbers?
1.4 is nearer to 1 than to 2 1
1.4 is ? when rounded off to the nearest whole number

6. Rounding Off Decimals
Round off 3.7 to the nearest whole number 3 4
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
Where are the nearest whole numbers?
3.7 is nearer to 4 than to 3
3.7 is ? when rounded off to the nearest whole number 4

7. Rounding Off Decimals
Round off 3.5 to the nearest whole number 3 4
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
Where are the nearest whole numbers?
3.5 is halfway between 3 and 4.
3.5 is ? when rounded off to the nearest whole number 4

8. Rounding Off Decimals
Round off to the nearest whole number 5
5.1
5.2
5.3
5.4
5.5
5.6
5.7
5.8
5.9 6
5.764
Where are the nearest whole numbers?
5.764 is nearer to 6 than to 5
5.764 is ? when rounded off to the nearest whole number 6

9. Rounding Off Decimals
4.8  5 5
4.8 liter is ______ liter when rounded off to the nearest liter.
7.259  7 7
7.259 kg is _____ kg when rounded off to the nearest kilogram.
8.49  8 8
8.49 m is ______ m when rounded off to the nearest meter.

10. Rounding Off Decimals

11. 4.6 What are the nearest two tenths? 4.56 is nearer to 4.6 than to 4.5
So it is between two tenths.
This is a hundredth.
Rounding Off Decimals
What is the first hundredth?
Round off 4.56 to the nearest tenth
4.5
4.58
4.6
4.51
4.52
4.53
4.54
4.55
4.56
4.57
4.59
Between two tenths there are 10 hundredths
What are the nearest two tenths?
4.56 is nearer to 4.6 than to 4.5
4.56 is ? when rounded off to the nearest tenth
4.6

12. 7.6 What are the nearest two tenths? 7.62 is nearer to 7.6 than to 7.7
So it is between two tenths.
This is a hundredth.
Rounding Off Decimals
What is the first hundredth?
Round off 7.62 to the nearest tenth
7.6
7.68
7.7
7.61
7.62
7.63
7.64
7.65
7.66
7.67
7.69
Between two tenths there are 10 hundredths
What are the nearest two tenths?
7.62 is nearer to 7.6 than to 7.7
7.62 is ? when rounded off to the nearest tenth
7.6

13. 4.6 Where are the nearest tenths? 4.55 is halfway between 4.5 and 4.6
This is a hundredth.
Rounding Off Decimals
Round off 4.55 to the nearest tenth
4.5
4.6
4.51
4.52
4.53
4.54
4.55
4.56
4.57
4.58
4.59
Rounding off to the nearest tenth is the same as rounding off to 1 decimal place.
Where are the nearest tenths?
4.55 is halfway between 4.5 and 4.6
4.55 is ? when rounded off to the nearest tenth
4.6

14. Rounding Off Decimals
If the digit is equal to 5 or more than 5, add 1 to the digit in the tenths place.
4.56  4.6
4.72  4.7
If the digit is less than 5, retain the digit in the tenths place.
4.85  4.9
When rounding off to 1 decimal place, consider the digit in the hundredths place only.

15. What are the nearest two hundredths?
This is a thousandth.
So it is between two hundredths.
Rounding Off Decimals
What is the first thousandth?
Round off to the nearest hundredth
4.512
4.514
4.516
4.51
4.518
4.52
4.511
4.513
4.515
4.517
4.519
Between two hundredths there are 10 thousandths
What are the nearest two hundredths?
4.518 is nearer to 4.52 than to 4.51
4.518 is ? when rounded off to the nearest hundredth
4.52

16. 8.36 What are the nearest two hundredths?
This is a thousandth.
So it is between two hundredths.
Rounding Off Decimals
What is the first thousandth?
Round off to the nearest hundredth
8.362
8.364
8.366
8.36
8.368
8.37
8.361
8.363
8.365
8.367
8.369
Between two hundredths there are 10 thousandths
What are the nearest two hundredths?
8.364 is nearer to 8.36 than to 8.37
8.364 is ? when rounded off to the nearest hundredth
8.36

17. 4.52 Where are the nearest hundredths?
This is a thousandth.
Rounding Off Decimals
Round off to the nearest hundredth
4.512
4.514
4.516
4.51
4.518
4.52
4.511
4.513
4.515
4.517
4.519
Rounding off to the nearest hundredth is the same as rounding off to 2 decimal places.
Where are the nearest hundredths?
4.515 is halfway between 4.51 and 4.52
4.515 is ? when rounded off to the nearest hundredth
4.52

18. Rounding Off Decimals
If the digit is equal to 5 or more than 5, add 1 to the digit in the hundredths place.
4.528  4.53
4.564  4.56
If the digit is less than 5, retain the digit in the hundredths place.
4.515  4.52
When rounding to 2 decimal places, consider the digit in the thousandths place only.

19. 2.039 6.615 7.188 2 7 Decimal Rounded off to the nearest Whole number
Rounding Off Decimals
Decimal
Rounded off to the nearest
Whole number
2.039 2
6.615 7
7.188
Consider the digits in the tenths place.

20. Rounding Off Decimals
Consider the digits in the hundredths place.
Decimal
Rounded off to the nearest
tenth
2.039
2.0
6.615
6.6
7.188
7.2

21. Rounding Off Decimals
Consider the digits in the thousandths place.
Decimal
Rounded off to the nearest
hundredth
2.039
2.04
6.615
6.62
7.188
7.19