powerpoint presentation · challenging math problems worth solving grade 4 grade 5 grade 6 grade 7...
Post on 30-May-2020
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𝑥
4𝑥 + 3 = 2𝑥 + 7
体配 套字母的常见
见体配字母的常套字
𝑥+ = 𝑥+
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✓
𝑥+ = 𝑥+
𝑥+ = 𝑥+
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❑
❑
✓
✓
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❑
✓
✓
✓
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