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Year 1 Numeracy worksheet for practicing addition to 20 with vertical sums.

A Year 1 Numeracy worksheet titled "Addition vertical to 20" with 20 addition problems arranged in vertical format, including spaces for students to write their answers. The worksheet includes fields for name, date, subject, and unit, with a score box at the top right corner. The page is from Primary Leap Ltd, 2008.

A Year 1 Numeracy worksheet titled "Addition vertical to 20" with 20 addition problems arranged in vertical format, including spaces for students to write their answers. The worksheet includes fields for name, date, subject, and unit, with a score box at the top right corner. The page is from Primary Leap Ltd, 2008.

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