Place Value, Grade 3 covers 4-digit numbers (numbers with thousands) and adding and subtracting them. We also study rounding and estimating, which are very important skills for everyday life.
First, students learn 4-digit numbers, place value -- breaking numbers such as 3,498 into thousands, hundreds, tens, and ones -- and comparing 4-digit numbers. Next, they practice some mental addition and subtraction with 4-digit numbers. The lesson stresses the similarities between adding and subtracting 4-digit numbers and adding and subtracting smaller numbers. Practicing mental math also helps to build number sense.
We also study regrouping in addition and subtraction, using 4-digit numbers.
The last major topics in this book are rounding numbers to the nearest hundred and estimating. Students also get to do some more word problems.
I wish you success in teaching math!
Maria Miller, the author