# Chapter 7 Math Test 2. txt

 Definition of algorithm a procedure or specific set of steps that will lead to consistent results Mental Arithmetic 1. use it2. when to use it3. why it works the way it does Substitution 1. hidden number strategy works because of the Make 10 Strategy2. 298 + 167 = +2 then -2 from total 3. 35 - 18 = +2 then +2 from total Problem Solving 1. teacher directed discovery2. manipulatives has place value characteristics Story Problem Using Subtraction Questions 1. Tell Story2. Ask how can we solve this problem3. What number sentence (helps interpret story)4. Using your manipulatives, please show me the 66.5. How many ones are in 66? 66. How can I subtract 7 ones? trade/break apart a 10 for 10 ones7. How many ones do I have now? 168. Now, subtract 7 ones.9. How ones do you have now? 910. Now, subtract 2 tens.11. How many tens do you have? 312. What is the answer to the story problem? 39 Story Problem Using Addition Questions 1. Tell Story2. Ask how can we solve this problem3. What number sentence (helps interpret story)4. Using your manipulatives, please show me the 66.5. Push the number 66 toward the top of your page.6. Build the 15 below the number 66.7. Combine the ones.8. Can all the ones stay together? no9. Make a trade and place the ten above the other ten.10. Combine your tens.11. How many tens? 312. How many are there now? 33 Authoremilybrooke082690 ID77108 Card SetChapter 7 Math Test 2. txt DescriptionMath Test Two Chapter Seven Updated2011-04-04T03:21:38Z Show Answers