brainiacDOUBLE DIGIT ADDITION

DEVELOPING MENTAL STRATEGIES

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Teaching Tips: Brainiac Worksheets

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Learning to add double digit numbers can be very difficult for students. Help bridge the gap between concrete and abstract with these worksheets.

All of the addition problems on these pages have an answer less than 99 and do not involve regrouping.

Tell your students that they need to learn to visualize the numbers they are going to add, in ‘tens and ones’. To find the total, they first add the ones and then the tens. The ‘brain’ pictures on the worksheets will help support students in developing these mental images.

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Solving double digit addition imagine the numbers in pictures!

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tens ones tens ones

tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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tens ones tens ones

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