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Addition by Doubling Multiples of 10 Activity 1

Addition by Doubling Multiples of 10 Activity 1: Double the following multiples of 10 and drag and drop the correct answers.

Addition by Doubling Multiples of 10 Activity 1

Practise doubling addition by doubling multiples of 10. You can improve fast addition doubling by doubling 3-digit numbers. Develop your three digit number doubling skills with Addition by Doubling Multiples of 10 Activity 1.

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{ "answers": ["1180","1540","1720","1580","1860","1360","1080","1640","1700","1480"], "backgroundClass":"octa", "columns":"2", "questions": [{ "textbegin": "Double", "lettersbefore": ["770"], "answer": "1540", "img":"arrow.png", "imgalt":"image alter text" }, { "textbegin": "Double", "lettersbefore": ["590"], "answer": "1180", "img":"arrow.png", "imgalt":"image alter text" }, { "textbegin": "Double", "lettersbefore": ["860"], "answer": "1720", "img":"arrow.png", "imgalt":"image alter text" }, { "textbegin": "Double", "lettersbefore": ["930"], "answer": "1860", "img":"arrow.png", "imgalt":"image alter text" }, { "textbegin": "Double", "lettersbefore": ["850"], "answer": "1700", "img":"arrow.png", "imgalt":"image alter text" }, { "textbegin": "Double", "lettersbefore": ["680"], "answer": "1360", "img":"arrow.png", "imgalt":"image alter text" }, { "textbegin": "Double", "lettersbefore": ["820"], "answer": "1640", "img":"arrow.png", "imgalt":"image alter text" }, { "textbegin": "Double", "lettersbefore": [740], "answer": "1480", "img":"arrow.png", "imgalt":"image alter text" }, { "textbegin": "Double", "lettersbefore": ["790"], "answer": "1580", "img":"arrow.png", "imgalt":"image alter text" }, { "textbegin": "Double", "lettersbefore": ["540"], "answer": "1080", "img":"arrow.png", "imgalt":"image alter text" }]}
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