True, 20 - 15 = 5, 16 - 6 = 10, 12 - 1 = 11, 10 - 4 = 6, 2 - 2 = 0, 8 - 7 = 1, 15 - 14 = 1, 16 - 8 = 8, False, 14 - 6 = 4, 19 - 3 = 3, 6 - 1 = 13, 5 - 3 = 20, 18 - 6 = 11, 7 - 4 = 17, 1 - 1 = 6

subtraction

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Subtraction True or False?
Subtraction True or False?
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真假游戏
Maths - subtraction to 20
Maths - subtraction to 20
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真假游戏
Subtraction True or False
Subtraction True or False
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真假游戏
Subtraction facts within 20
Subtraction facts within 20
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Subtraction to 20
Subtraction to 20
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Subtraction 1-20
Subtraction 1-20
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打地鼠
Subtraction (number sentence)
Subtraction (number sentence)
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随堂测验
subtraction facts through 20
subtraction facts through 20
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