Four Operations & Formal Written Methods

Interactive macro-enabled MS-Excel spreadsheet. Contents: Answer questions written in words using the four operations. Answer questions expressed in numbers using + − × or ÷ symbols. Write six expressions using + − × or ÷ to complete spider-diagrams. Write six expressions using multiply or divide for squares in arrays. Add two numbers together by column methods. Add three numbers together by column methods. Add four numbers together by column methods. Subtract one number from another by column methods. Multiply two numbers together (a) using long multiplication. Multiply two numbers together (b) using the grid method. Multiply two numbers together © using the lattice method. Divide one number by another (a) write it as a № & r or mixed №. Divide one number by another (b) write it as an integer or decimal.