2014-2015 Chem I Honors Unit 2 Notes: Numbers in Chemistry
... Calculators often give many more figures in the answer to a calculation than the significant ones. As a result many of the numbers in the answer are meaningless, and the answer needs to be rounded. In a multi-step calculation there are 3 options: Leave all numbers on the calculator in the intermed ...
... Calculators often give many more figures in the answer to a calculation than the significant ones. As a result many of the numbers in the answer are meaningless, and the answer needs to be rounded. In a multi-step calculation there are 3 options: Leave all numbers on the calculator in the intermed ...
Scheme of work for Unit 3 Modular Exam (Number, Shape Space
... Multiplying and dividing by negative numbers Using the terms square, positive square root, negative square root, cube and cube root Recalling integer squares from 2 × 2 to 15 × 15 and the corresponding square roots, the cubes of 2, 3, 4, 5 and 10 Developing a range of strategies for mental c ...
... Multiplying and dividing by negative numbers Using the terms square, positive square root, negative square root, cube and cube root Recalling integer squares from 2 × 2 to 15 × 15 and the corresponding square roots, the cubes of 2, 3, 4, 5 and 10 Developing a range of strategies for mental c ...
SigFigs_06feb10_mini
... • Accuracy is the degree of conformity of a measured or calculated quantity to its actual (true) value. • Precision, also called reproducibility or repeatability, is the degree to which further measurements or calculations show the same or similar results. • A measurement can be accurate but not pre ...
... • Accuracy is the degree of conformity of a measured or calculated quantity to its actual (true) value. • Precision, also called reproducibility or repeatability, is the degree to which further measurements or calculations show the same or similar results. • A measurement can be accurate but not pre ...
Grade_7_mental_math_strategies
... adding and subtracting decimals line up the place values and add as normal. When multiplying, simply multiply as normal to find your answer then count the number of spaces the decimal is from the last digits and move the decimal in your answer this many spaces. When dividing you must estimate your a ...
... adding and subtracting decimals line up the place values and add as normal. When multiplying, simply multiply as normal to find your answer then count the number of spaces the decimal is from the last digits and move the decimal in your answer this many spaces. When dividing you must estimate your a ...
A square is divided into two rectangles whose areas are in the ration
... Larger perimeter = 4x + 4x + 3x + 3x = 14x ...
... Larger perimeter = 4x + 4x + 3x + 3x = 14x ...
