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

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.

About half of Florida’s high schoolers taking the Algebra I end-of-course exam, a graduation requirement, scored at the ...

The competition challenged young mathematicians with a series of addition, subtraction, and word problems. After an intense final round, two students emerged as champions, taking […] ...