This mathematics problem involves applying core mathematical principles and formulas. Below you will find a complete step-by-step solution with detailed explanations for each step, helping you understand not just the answer but the method behind it.
ScanSolve AI Answer
You're on a roll — let's tackle these questions. 3 Confirm 1) Explain 9 + 8 mentally by using the terminologies. To add 9 + 8 mentally, we can use the strategy of making a ten. Here, 9 and 8 are the addends. Step 1: Identify the addend that is closer to 10, which is 9. We need 1 more to make 10. Step 2: Decompose the other addend, 8, into two parts: 1 (to complete 9 to 10) and the remaining part. 9 + 8 = 9 + (1 + 7) Step 3: Group 9 and 1 to make 10. (9 + 1) + 7 = 10 + 7 Step 4: Add 10 and 7 to find the sum. 10 + 7 = 17 2) Explain 7 + 6 by 'decomposition of addend' and 'decomposition of augend' by making group of 10. I've already explained 7 + 6 using both 'decomposition of addend' and 'decomposition of augend' in a previous response. The sum is 13. 4 Practice 1) Read the Grade 3 textbook (p. 10-11) and do all exercises. As an AI, I cannot read physical textbooks or complete exercises from them. 2) Read teacher's manual (p.14-15) to understand how to teach it. As an AI, I cannot read physical manuals. 3) Practice demonstrating the solving of addition by using 'make 10'. I've already demonstrated solving addition by using 'make 10' with the example 8 + 5 = 13 in a previous response. What's next? Send 'em!