standard_description: Multiply a whole number of up to four digits by a one-digit whole number, and multiply two two-digit numbers, using strategies based on place value and the properties of operations. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models.
Grade 4 expectations in this domain are limited to whole numbers less than or equal to 1,000,000.
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