Match fun story problems with the correct addition or subtraction expression.

Algebraic expressions in fraction form are rational. Methods of adding, subtracting, multiplying and dividing fractions plus expanding and factorising can be used to simplify rational expressions.

This video addresses Common Core Grade 2 Standard Operations & Algebraic Thinking: Represent and solve problems involving addition and subtraction. 03/01/2017 | Rating NR ...

Esther M. H. Billings, SMP That Help Foster Algebraic Thinking, Teaching Children Mathematics, Vol. 23, No. 8 (April 2017), pp. 476-483 ...