# Problem Solving – Thinking Blocks Interactive Tutorials and Problems 3

Thinking Blocks Interactive Tutorials – Model and solve word problems with addition and subtraction. Online interactive tutorial (First-Fourth).

**Online Word Problems with Double-Digit Addition and Subtraction**

Word Problem Set 1

Word Problem Set 2

Word Problem Set 3

Word Problem Set 4

Word Problem Set 5

Word Problem Set 6

Word Problem Set 7

Word Problem Set 8

Word Problem Set 9

Word Problem Set 10

**Online Word Problems with Triple-Digit Addition and Subtraction**

Word Problem Set 1

Word Problem Set 2

Word Problem Set 3

Word Problem Set 4

Word Problem Set 5

Word Problem Set 6

Word Problem Set 7

Word Problem Set 8

Word Problem Set 9

Word Problem Set 10

**Online Word Problems with Double-Digit Addition and Subtraction Two Steps**

Word Problem Set 1

Word Problem Set 2

Word Problem Set 3

Word Problem Set 4

Word Problem Set 5

Word Problem Set 6

Word Problem Set 7

Word Problem Set 8

Word Problem Set 9

**Online Word Problems with Double-Digit Addition and Subtraction Extra Information**

Word Problem Set 1

Word Problem Set 2

Word Problem Set 3

Word Problem Set 4

Word Problem Set 5

**Online Word Problems with Addition and Subtraction Challenge Problems**

Word Problem Set 1

Word Problem Set 2

Word Problem Set 3

Word Problem Set 4

Word Problem Set 5

Word Problem Set 6

Word Problem Set 7

Word Problem Set 8

**Represent and solve problems involving addition and subtraction.**

Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.

**Solve problems involving the four operations, and identify and explain patterns in arithmetic.**

Solve two-step word problems using the four operations. 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.

**Use the four operations with whole numbers to solve problems.**

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.