Math Lessons

Suppose you want to find 45 divided by 3.
Start off by writing the problem like this.
To begin, ask how many times 3 goes into 4 — that is, what’s 4 divided by 3? continue reading…

Suppose you want to subtract 83 – 56.
Begin subtracting in the ones column: 3 – 6.
Because 3 is smaller than 6, you need to borrow from the tens column.
Subtract 1 from the 8 replacing 8 with a 7.
continue reading…