You can add or subtract numbers in lots of different ways. You can use number lines, number bonds, fact families, 10 squares and counters, or even just writing the numbers down. Sometimes it is faster ...

When you add or subtract currency-formatted numbers, Excel 2013 automatically adopts the currency format for the results. Adding and subtracting figures follows similar procedures, but you must be ...

You can subtract in Excel by placing a minus sign in front of any numbers you want to deduct. You can add and subtract a bunch of numbers at once using the equal sign or SUM function. You can add and ...