PPT-Addition and Subtraction Investigation

Algorithm for the investigation 1 Choose two or three numbers 2 Arrange them in order biggest first 3 Reverse the digits 4 Subtract the smaller number from the larger one 5 Reverse the answer. Adrian Liu, MIT. 10. 0. 0.02. 0.04. 0.06. 0.08. 10. 1. 10 mK. 1 K. 100 mK. Image credit: de Oliveira-Costa et. al. 2008. 1. Polynomials are not “natural”, but they happen to be fairly good.. Line-of-Sight Polynomial Subtraction. Who knew drawing could help you in math??. What works best for YOU?. So far we have learned how to solve basic addition and subtraction problems with decimals using two methods:. Written form. Using counting blocks. = Math . Rhyme Time. Technology. Typhoon. Body. Building . Name that State!. 100. 100. 100. 100. 100. 200. 200. 200. 200. 200. 300. 300. 300. 300. 300. 400. 400. 400. 400. 400. 500. 500. 500. 500. in Grades K-2 . . Hall County Math Frameworks. -Georgia Excellence Standards/Georgia Frameworks. Hall County Math Units. -Everyday Counts Calendar Math/ EDC Partner Games. -Manipulatives. -Websites & Apps. Written Methods. Written Methods. Throughout their years at school, children should progress from informal jottings, practical taking away and number line methods to formal efficient written methods.. Maths Workshop. November 2015. Aims of the session. To explore the New Maths Curriculum. To model the use of methods and strategies. To give you a greater understanding of the progression in Maths from Year 1 – Year 3. Patterns and Algebra . 21 . EVEN: 2 4 6 8 . 0. ODD: 1 3 . 5. . 7. . 9. 6 + 8 = 14. Addition and Subtraction 25. Patterns and Algebra . 21 . 8 – 6 = 2. Addition and Subtraction 25. Patterns and Algebra . 2. -9 + 4 =. -5. -17+(-3)=. -20. When we subtract. . We start with the number on the left. . Move that many numbers to the left or right depending on if it is negative or positive. . Since we are subtracting, we use the . Gabr’l Stackhouse. April 25, 2015. Purpose. To strengthen the teaching and learning of addition and subtraction word problems in kindergarten, first, and second grade classrooms.. Learning Goals. To understand why students think addition means “join together” and subtraction means “take away.”. (AZCCRS). Monte Vista. April 3, 2014. Kindergarten. 1. st. Grade. 2. nd. Grade. Liz Morris. Math Coach. emorris@kyrene.org. Lisa Liberta. Assistand Principal. lliber@kyrene.org. Workshop objectives. Activity 13. Pick up a Notecard and write your . NAME. and . PERIOD. Title Notecard: . GOALS. Answer the following questions:. 1. What do I want to improve upon this six weeks in math class?. 2. How can I make sure I accomplish this goal?. Lesson 2.5. In the diagram above, AB = CD.. Do you think that AC = BD?. Suppose that BC were 3cm. Would AC = BD?. If AB = CD, does the length of BC have any effect on whether . AC = BD?. A. C. B. D. Storing Negative Integers. Another method is . 2s Complement. 64. 32. 16. 8. 4. 2. 1. 128. -128. 1. 0. 1. 1. 0. 1. 0. 1. -75. -128 32 16 4 1=-75. 2s Complement Conversion. -117. Stage 1 : work out 117 in binary. Curriculum Prioritisation for Primary Maths. These materials heavily reflect the prioritisation approach of the ready-to-progress criteria in the . DfE Primary Mathematics Guidance 2020. and on the .