Represent multi-step word problems as equations and solve them, including word problems involving remainders. Also, practice estimating solutions to multi-step word problems. This skill extends the 3rd grade skill of solving two-step word problems involving the four operations.

2-step estimation word problem by Khan Academy

Do these Khan Academy exercises:

- 2-step estimation word problems
- Represent multi-step word problems using equations
- Multi-step word problems with whole numbers

Next, give your students this challenge:

The Tomato and the Bean by NRICH

Conclude by leading this investigation:

Arrows

by MathPickle

4.OA.A.3: Solve multistep word problems posed with whole numbers and having whole-number answers using the four operations, including problems in which remainders must be interpreted. Represent these problems using equations with a letter standing for the unknown quantity. Assess the reasonableness of answers using mental computation and estimation strategies including rounding.