Estimating Sums and Differences of Decimals Math Activity

Your students will have fun estimating sums and differences of decimals with this no prep, self-checking digital activity in Google Sheets. Students will like being able to get instant feedback as they answer questions and you will love giving them independent practice that requires no grading.

The answer box will turn red if they put in the wrong answer making it easy for them to spot errors and fix them. As they enter correct answers, the answer box will turn green and puzzle pieces will appear.

This activity contains two puzzle pictures with 16 problems each to solve. Click on the preview to see the puzzles.

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Here’s how some teachers have used this resource:

• Warm up activity 
• Center activity / Station Rotation
• Fun practice for early or fast finishers
• Collaborative practice with a partner
• Homework
• Ideal for sub plans
• Differentiating by assigning different puzzles to students

Made for Google Drive - These puzzles are interactive, paperless, no prep, self-checking and give instant feedback.

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