In fourth grade, students focus most on using all four operations - addition, subtraction, multiplication, and division - to solve multi-step word problems involving multi-digit numbers.

Let's look at another subtraction. It's not possible to subtract ... Rename 3 as 13 and then subtract: 13 - 7 = 6 If you can subtract two 3-digit numbers from each other, then you can use the ...

There are two ways to find the answer to subtraction calculations. First, you could start on the smaller number and count up to reach the bigger number. This works if the two numbers are close ...

Previously in Massachusetts, students were introduced to the algorithm for multi-digit addition and subtraction in 2nd grade. In California, students learned the algorithms for addition ...

Say two-digit numbers using number words (79 is ... Understand addition as “putting together” and “adding to.” Understand subtraction as “taking apart” and “taking away from.” ...