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Topic 11 Review
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36 - 10?
26
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What equation does this picture show?
80 - 30 = 50
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What is 40 - 30?
10
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Okay!
What is 30 - 20?
10
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9 tens - 5 tens = ?
4 tens (40)
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70 - 20 = ?
50
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Okay!
6 tens - 4 tens = ?
2 tens (20)
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99 - 10?
89
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Okay!
80 - 30 = ?
50
Oops!
Okay!
What is 70 - 50?
20
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Okay!
What equation does this show?
70 - 10 = 60
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Okay!
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