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Set 4
Addition, Subtraction & Measurement

Dion the Dragon

Hello Fourth Grade Friends!

You have lots of strategies for solving addition and subtraction problems.

Have you ever seen someone solve a problem like this?

A stacked addition equation: 528 + 183 = 711.The numbers are colored to show place value: red ones, green tens, yellow hundreds.

This is called an algorithm. An algorithm is a step-by-step process.

Let’s try an algorithm to solve some problems!

Your friend,

Dion the Dragon