- show your work for every problem

- write your work in pen nice and neat

- explain how you got the answer for every single problem

Chapter 4 Challenge Problems 1.Find 837+145 using a. the lattice method. b. an intermediate algorithm. c. the standard algorithm. 3. Find 72x43 using a. an intermediate algorithm. b. the standard algorithm. c. the lattice method. 5. Find 413, ,+214 five five using a. the lattice method. b. the standard algorithm. 2. Find 451-279 using a. the standard algorithm. b. a nonstandard algorithm. 4. Find 253+27 using a. the scaffold method. b. the standard algorithm. 6. Find 413,,, x 32;,, using a. the lattice method. b. the standard algorithm