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[DOC File]Significant Digits Handout
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0.0500 = 3. 200 = 1. 605 = 3. 1010 = 3 = 5. Operations with Significant Digits. Adding and subtracting. The answer is only as precise as the least precise digit in one of the addends. Multiplying and Dividing. The answer should have the same amount of significant digits as the number in the problem with the least number of significant digits.
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Adding and Subtracting Three-Digit Numbers: How To and Exampl…
Step 2 - Add the number of decimal digits in each of the original numbers: 3.2 has one decimal digit, and 0.41 has two decimal digits. Therefore, the answer will have a total of three decimal digits. Step 3 - Move the decimal the same number of places to the left in your answer. 1312 will …
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[DOCX File]Chapters 7–9: Addition and subtraction - Online Resources
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Skill- Subtracting Two-Digits. Intervention – Subtraction by Counting Up. Source or adapted from - Teaching Student-Centered Mathematics, 3-5 by John A. Van de Walle. Materials: paper, pencil, base-ten blocks or number disks (as needed by the student) Instructions for administration: 1. This is an amazingly powerful way to subtract.
adding and subtracting 3 digit numbers

[DOC File]DECIMALS - YTI
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In this course, it is important that students are able to add and subtract numbers of 3-digits or less, but they should be allowed to use place value strategies when doing so. Have students sit in a circle and ask a volunteer to use base-10 blocks to model the number 156.
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[DOC File]Concepts of Print Interventions:
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Adding Two-Digit Numbers and Subtracting Multiples of Ten : I can write an addition equation with two-digits vertically or horizontally to solve. I can choose and model a strategy to solve an addition equation that involves two-digit numbers.
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[DOC File]Richland Parish School Board
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add and subtract whole numbers with more than 4 digits, including using formal written methods (columnar addition and subtraction) ... add/subtract 9 or 11 from given number by adding/subtracting 10 and adjusting . Year 3 . use mental strategies to recall number facts within 20 .
3 digit addition worksheets pdf

[DOC File]Significant Digits
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in Years 3, 4, 5 and 6. ... NRICH: Totality * G Add and subtract numbers with up to 4 digits using the formal written methods of columnar addition and subtraction where appropriate ... Solve problems involving multiplying and adding, including using the distributive law to multiply two digit numbers by one digit, integer scaling problems and ...
3 digit addition and subtraction with regrouping

[DOCX File]Strategies for Adding and Subtracting to 20
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Adding and Subtracting: Look for the number whose final significant digit ends in the farthest decimal place to the left, and then round your answer to that same decimal place. For example, how many digits should we keep in this calculation? 720.0 + 5.4 × 102 – 117 - 0.064 = 1142.936
3 digit addition and subtraction

[DOC File]Year 3 - Maths
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Section 1.3.2: Significant Digits after Adding or Subtracting When you add or subtract measurements, then you have to round your answer to the precision of the least accurate measurement. That’s because the uncertainty in the least precise measurement overwhelms the precision of the other measurements.
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Adding and subtracting 3 digits