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0 10 20 30 40 50 60 908070 100
Rounding Off Decimals
Round off 37 to the nearest ten
37 is between 30 and 40
Round off 37 to the nearest ten
3031 32 33 34 35 36 393837
4037
37 is nearer to 40 than to 3037 is ? when rounded off to the nearest ten
40
Rounding Off Decimals
Where are the nearest tens?
Round off 750 to the nearest hundred
750 is between 700 and 800
500 900800700600 1000
Rounding Off Decimals
Round off 750 to the nearest hundred
750 is halfway between 700 and 800
700 780760740720 800
halfway
750
750 is ? when rounded off to the nearest hundred
800
Rounding Off Decimals
Where are the nearest hundreds?
1 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2
Round off 1.4 to the nearest whole number
1.4 is nearer to 1 than to 2
1.4 is ? when rounded off to the nearest whole number
1
Rounding Off Decimals
Where are the nearest whole numbers?
3 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4
Round off 3.7 to the nearest whole number
3.7 is nearer to 4 than to 3
3.7 is ? when rounded off to the nearest whole number
4
Rounding Off Decimals
Where are the nearest whole numbers?
3 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4
Round off 3.5 to the nearest whole number
3.5 is halfway between 3 and 4.
3.5 is ? when rounded off to the nearest whole number
4
Rounding Off Decimals
Where are the nearest whole numbers?
5 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 6
Round off 5.764 to the nearest whole number
5.764 is nearer to 6 than to 5
5.764 is ? when rounded off to the nearest whole number
6
5.764
Rounding Off Decimals
Where are the nearest whole numbers?
4.8 liter is ______ liter when rounded off to the nearest liter.
7.259 kg is _____ kg when rounded off to the nearest kilogram.
8.49 m is ______ m when rounded off to the nearest meter.
5
7
8
Rounding Off Decimals
4.8 5
7.259 7
8.49 8
Rounding Off Decimals
4.5 4.51 4.52 4.53 4.54 4.55 4.56 4.57 4.58 4.59 4.6
Round off 4.56 to the nearest tenth
What are the nearest two tenths?
4.56 is nearer to 4.6 than to 4.54.56 is ? when rounded off to the nearest tenth
4.6
Rounding Off Decimals This is a hundredth.
So it is between two tenths.
Between two tenths there are 10 hundredths
What is the first hundredth?
7.6 7.61 7.62 7.63 7.64 7.65 7.66 7.67 7.68 7.69 7.7
Round off 7.62 to the nearest tenth
7.62 is nearer to 7.6 than to 7.77.62 is ? when rounded off to the nearest tenth
7.6
Rounding Off Decimals This is a hundredth.
So it is between two tenths.What is the first
hundredth?
What are the nearest two tenths?Between two tenths there are 10 hundredths
4.5 4.51 4.52 4.53 4.54 4.55 4.56 4.57 4.58 4.59 4.6
Round off 4.55 to the nearest tenth
4.55 is halfway between 4.5 and 4.64.55 is ? when rounded off to the nearest tenth
4.6
Rounding off to the nearest tenth is the same as rounding off to 1 decimal place.
Rounding Off Decimals
Where are the nearest tenths?
This is a hundredth.
4.56 4.6
4.72 4.7
4.85 4.9
When rounding off to 1 decimal place, consider the digit in the hundredths place only.
If the digit is equal to 5 or more than 5, add 1 to the digit in the tenths place.
If the digit is less than 5, retain the digit in the tenths place.
Rounding Off Decimals
4.518 is ? when rounded off to the nearest hundredth
4.51 4.511 4.512 4.513 4.514 4.5154.516
4.517 4.518 4.519 4.52
Round off 4.518 to the nearest hundredth
4.52
Rounding Off Decimals
4.518 is nearer to 4.52 than to 4.51
This is a thousandth
.
So it is between two hundredths.What is the first
thousandth?
What are the nearest two hundredths?Between two hundredths there are 10 thousandths
8.364 is ? when rounded off to the nearest hundredth
8.36 8.361 8.362 8.363 8.364 8.3658.366
8.367 8.368 8.369 8.37
Round off 8.364 to the nearest hundredth
8.364 is nearer to 8.36 than to 8.378.36
Rounding Off Decimals This is a thousandth
.
So it is between two hundredths.What is the first
thousandth?
What are the nearest two hundredths?Between two hundredths there are 10 thousandths
4.51 4.511 4.512 4.513 4.514 4.5154.516
4.517 4.518 4.519 4.52
Round off 4.515 to the nearest hundredth
4.515 is halfway between 4.51 and 4.524.515 is ? when rounded off to the nearest hundredth
4.52
Rounding off to the nearest hundredth is the same as rounding off to 2 decimal places.
Rounding Off Decimals This is a thousandth
.
Where are the nearest hundredths?
4.528 4.53
4.564 4.56
4.515 4.52
When rounding to 2 decimal places, consider the digit in the thousandths place only.
If the digit is equal to 5 or more than 5, add 1 to the digit in the hundredths place.
If the digit is less than 5, retain the digit in the hundredths place.
Rounding Off Decimals
Decimal Rounded off to the nearest
Whole number
2.039 2
6.615 7
7.188 7
Rounding Off Decimals
Consider the digits in the
tenths place.
Decimal Rounded off to the nearest
tenth
2.039 2.0
6.615 6.6
7.188 7.2
Rounding Off Decimals
Consider the digits in the hundredths
place.
Decimal Rounded off to the nearest
hundredth
2.039 2.04
6.615 6.62
7.188 7.19
Rounding Off Decimals
Consider the digits in the thousandths
place.
