Leave the digit the same if the next digit is less than 5 (this is called rounding down) but increase it by 1 if the next digit is 5 or more (this is called rounding up). The rounded value must be a ...

Scientific American presents Math Dude by Quick & Dirty Tips. Scientific American and Quick & Dirty Tips are both Macmillan companies. So far we've talked about the big ideas behind significant ...

Use rounded values to estimate close the answer to a calculation. This is a useful non-calculator skill. Refresh your knowledge with these guides on rounding and significant figures. Rounding to ...

Unit 1 Segment C: Significant Figures We explain the rules for using significant figures. Unit 1 Segment C: Significant Figures We take you to a woodworking shop where we explain the rules for using ...

I've designed this lesson to build up students knowledge of rounding to significant figures. It starts with 10 quick fire questions on rounding to the nearest 10, 100, 1000 and decimal places. Then ...

Build students’ confidence with significant figures rules and calculations using this engaging set of worksheets paired with a podcast-style audio explanation. Designed for secondary mathematics and ...