standard_description: Solve multistep word problems posed with whole numbers and having whole-number answers using the four operations, including problems in which remainders must be interpreted. Represent these problems using equations with a letter standing for the unknown quantity. Assess the reasonableness of answers using mental computation and estimation strategies including rounding.
problem_activity: Problem 1
Round to the place mentioned below. Show or explain your thinking.
a.   Round 4,862 to the nearest thousand.
4,862 ≈ ___________
b.   Round 308,724 to the nearest hundred thousand.
308,724 ≈ __________
Problem 2
There are 97,385 people who live in Boulder, Colorado. Cathy thinks that rounds to about 100,000 people. Alonzo thinks it rounds to 90,000 people. Who rounded correctly, Cathy or Alonzo? Show or explain your thinking.


aligns: no