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NumbertimeAddition and Subtraction Clips
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Subtraction strategies—Addition And Subtraction: Plus and Minus
Duration: 03:19
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Adding using number bonds—Adding Three Numbers
Duration: 01:12
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Adding three numbers - problem-solving—Adding Three Numbers
Duration: 01:30
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Adding three small numbers by counting on—Adding Three Numbers
Duration: 01:01
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Addition by counting in tens—Adding Three Numbers
Duration: 00:48
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Addition strategies - largest number first—Adding Three Numbers
Duration: 03:03
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Adding near doubles - numbers more than 20—Patterns of Addition
Duration: 00:45
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Adding near doubles - numbers less than 20—Patterns of Addition
Duration: 01:22
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Adding near doubles - numbers less than 20—Patterns of Addition
Duration: 01:25
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Subtraction strategies—Addition And Subtraction: Plus and Minus
Duration: 03:22























