Make the addition equation true by providing the correct number up to 3 digits in this interactive math test. It gives immediate feedback for diagnosis and reinforcement.

This test students must balance addition equations up to 3 digits.

There are seven multiple-choice questions and three drag-and-drop questions. Students will have to supply the correct number up to 3 digits that will make an addition equation true. They will have to add two numbers and then subtract the number on the other side of the equal sign in order to calculate the answer.

This test is based on the following Common Core Standards:

**CCSS.Math.Content.3.NBT.2**

Fluently add and subtract within 1000 using strategies and algorithms
based on place value, properties of operations, and/or the relationship
between addition and subtraction.

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