PPT-Adding and Subtracting

By Jenny Erickson Adding in Scientific Notation and Subtracting in Scientific Notation Adding and Subtracting The important thing to remember about adding or subtracting is that the exponents must be the same . Use mental math to calculate each answer Explain your strategy a 54 29 b 88 32 c 100 48 d 70 14 2 The Boston Marathon is a 42 km run Aaron ran the marathon in 100 min Use mental math to calculate Aarons distance and time at each point during the 42 eserved. Adding and Subtracting Time You can add and subtract time.Remember that there are 60 minutes (min) in 1hour (h). 6 h 32 min7 h 16 min
6 h  60 min  16 min  2 h 43 min
6 h  76 min You know that the bottom number of a fraction tells how may parts each whole is divided into.. In this picture each circle is divided into 4 parts so the bottom number for this fractions is 4.. . Home. 7/8. 8/12. 7/9. 7/10. 2/3. 11/12. 7/10. 8/15. 16/12 or 1 . ¼. 11/24. . 1 7/12. 1 5/56. 29/30. 29/52. 1 1/10. 5/8. 5/12. 1/3. 2/5. 1/2. 7/20 . 8/21. 23/36. 9/22. 71/126. Multiples. Home. A. List the first 5 multiples of:. To add or subtract rational expressions use the addition property:. Taken from http://podcasts.shelbyed.k12.al.us/sclemons/files/2011/05/add-subtraction-rationals.ppt#1. If the expressions have the same (common) denominator, add or subtract the numerators, keep the same denominator, and simplify the result.. Section 1-5. Goals. Goal. To find sums and differences of real numbers.. Rubric. Level 1 – Know the goals.. Level 2 – Fully understand the goals.. Level 3 – Use the goals to solve simple problems.. 3. /21/17. How do we add and subtract fractions with like denominators?. How do we add and subtract fractions with unlike denominators?. How do we use models to add and subtract fractions?. Today We’ll Discuss. Soup – . er. mathematics. Adding integers. Option 1 . (SAME SIGN). . Add and take the sign of the bigger number.. Option 2. (DIFFERENT SIGNS). . Subtract and take the sign of the bigger number. Joshua ate ¼ of a pan of brownies. His brother James ate . 2. /. 4. of the pan. How much of the pan was eaten all together? . Equation: __________________. 2. Chris had a piece of wood that was . 7. NS 1.0 Solve problems involving addition and subtraction of decimals. . To add decimals. Line up the decimal points and add the columns from right to left.. Place a decimal point in the answer directly below the other decimal points.. Adding multiples of ten to any number. 7 10. 7 20. 7 30. 7 40. 15 10. 15 20. 15 30. 15 40. 19 10. 19 20. 19 30. 19 40. 23 10. 23 20. 23 40. 23 50. 36 10. 36 30. 36 50. Literacy. Write 5 words that tell you to add and 5 words that tell you to subtract.. Research. Do all currencies (money used around the world) have two decimal places?. Memory. Make sure you line up the columns (. Diagramming Sentences Adding basic modifiers… Diagramming’s Modifiers go underneath that which they modify… Prime Directive: Adding adjectives… Seldom do we have sentences that only have a subject and verb Look how easy it is to add ‘er’ to these words. Have a go at adding ‘er’ to these Did you get them right ? It is just as easy to add ‘est’ to these words. shortshorter