Rounding Off Decimals January 8,2016

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

Rounding Off Decimals Round off 5.764 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

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

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

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.

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 4.518 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

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 8.364 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

4.52 Where are the nearest hundredths? This is a thousandth. Rounding Off Decimals Round off 4.515 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

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.

Rounding Off Number Whole Number Tenths Hundredths 7.452 8.048 9.974 15.265

Rounding Off Number Whole Number Tenths Hundredths 7.452 7 7.5 7.45 8.048 8 8.0 8.05 9.974 10 9.97 15.265 15 15.3 15.27

Rounding Off Number Whole number 1 decimal place 2 decimal places 2.029 5.783 12.705 25.957

Rounding Off Number Whole number 1 decimal place 2 decimal places 2.029 2 2.0 2.03 5.783 6 5.8 5.78 12.705 13 12.7 12.71 25.957 26 25.96