12 - 5 = 7 Just like with addition, we can use a part-whole model to help partition larger numbers to make them easier to deal with in subtraction problems. First, partition 35 into 30 and 5.

Using addition and subtraction in multi-step problems This animated film from the BBC Teach shows you how to answer multi-step problems.

Now that you've learned to do basic math in Excel, your calculations will never slow you down again. With addition, ...

Players can choose from six different game speeds, and math problems include multiplication; division, addition, and subtraction. Advertisement 1984 - Funnels & Buckets is a shareware math-based ...