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2.85×4.7列竖式计算

3.15÷4.7≈0.67

2.82÷4.7 = 0.6本题除尽,得到1位小数:

0.36 × 4.7 = 1.692≈1.69

如图

1.44÷4.7 ≈ 0.306≈ 0.31≈ 0.3≈ 0.3064(保留4位小数)

36.48-5.3+4.7 =36.48-10+4.7+4.7 =26.48+9.4 =35.88

0.98 × 4.7 = 4.606

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