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Rules for rounding off numbers. If the digit to be dropped is greater than 5, the last retained digit is increased by one. For example, 12.6 is rounded to 13. If the digit to be dropped is less than 5, the last remaining digit is left as it is. For example, 12.4 is rounded to 12.
♦ Significant figures are different to decimal places ♦ Non-zero digits are significant ♦ The digit zero is ONLY significant if contained between non-zero digits or it is after the decimal point, at the end of a number
1) Round the numbers in the table. Number Nearest 10 Nearest 100 423 420 482 535 799 [1] 2) Round the numbers in the table. Number Nearest unit Nearest tenth 3.41 3 7.27 1.82 7.95 [1] 3) Round the numbers in the table. Number 1 decimal place 2 decimal places 0.474 0.5 4.945 0.6138 88.7057 [1] Rounding, Decimal Places and Significant Figures ...
Here you will find a range of free printable rounding worksheets to help your child learn to round numbers to either 1,2 or 3 significant figures. These sheets are carefully graded so that the easier sheets come first and give extra support.
Significant Figures, Math, and Rounding Cheat Sheet. How to Determine Sig Figs..... 3. Captive zeros are significant. 1. Ex. 4. Trailing zeros are not significant unless a decimal is present. How to determine sig figs for multiplying and dividing....
SIGNIFICANT FIGURES. The amount of approximation required in a number may be described in another way by saying how many significant figures are required. To find how many significant figures a number contains count all figures in the number except zeros at the beginning or end of the number.
Significant Figures Worksheet. 1. Indicate how many significant figures there are in each of the following measured values. 2. Calculate the answers to the appropriate number of significant figures. 3. Calculate the answers to the appropriate number of significant figures. 23.7 x 3.8.
