In the first part of the lesson, we learn the rounding rules and see examples of three-digit numbers being rounded to the nearest hundred.
In the second part, you will see examples of rounding 4-digit numbers to the nearest hundred, and you get to do some practice with me! .
In the final portion of the lesson, Mathy my mascot makes a pictograph of sales data, and for that, the numbers need to be rounded to the nearest hundred first.
Addition and subtraction with 4-digit numbers — mental math
Add and subtract 4-digit numbers — a lesson on estimation
Math Mammoth Grade 3 curriculum