This file of MTH 213 Week 3 Discussion Question 2 contains:

Many current mathematics textbooks emphasize mental mathematics and estimation. Do you think these topics are important for students today? Explain your answer.

This pack of MTH 213 Week 3 Individual Assignment Text Problems includes answers to the next questions:

Evaluation 3-3BPlace parentheses, if required, to make each of the following equations true23. Jonah has a huge collection of marbles. He observes that if he borrows 5 marbles from an acquaintance, he can organize the marbles in rows of 13 each. What will be the remainder when he divides his actual number of marbles by 13?Evaluation 3-4B15. Xuan saved $5340 during 3 years. If he saved $95 each month in the first year and an equal amount per month for the following 2 years, how much did he save per month in the last 2 years?Evaluation 3-5B 7. Calculate each of the following mentally. Briefly explain your method for each case.Mathematical Connections 3-3 Exercise 22. Can 0 be the identity for multiplication? Discuss why or why not. Mathematical Connections 3-5 Exercises.5. Give different examples from real-life situations where an estimate, instead of an accurate answer is enough.10. A student questions why he has to know about any estimation approach other than rounding. What will be your response?Chapter 5Evaluation 5-1B 15. Prove that ?x ?y= ?y-x, for all integers x and y.18. Find all integers x, if there exist any, such that the following are true:Evaluation 5-2 B12. Prove that the distributive property of multiplication over addition, a (b+c) =ab+ac are true for all of the given values of a, b, and c:13. Calculate the following:17. Find the property of integers being illustrated in each of the following:Evaluation 5-3B3. Without utilizing a calculator, test each of the following numbers for divisibility by 2, 3, 4, 5, 6, 8, 9, 10, and 11:a. 4,201,012 8. Create a test for divisibility by each of the following numbers:Evaluation 5-4B 5. Find the prime factorizations of the following:6. Assume the 435 members of the House of Representatives are positioned on committees having more than 2 members but less than 30 members. Every committee is to have an identical number of members and every member can be on just one committee.Evaluation 5-5B6. A movie rental store hands out free popcorn to every fourth customer and a without charge movie rental to every sixth customer. Use the number-line method to find which customer was first to get both prizes.11. The principal of Valley Elementary School wishes to divide each of the three fourth-grade classes into little same

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