问题
填空题
用四舍五入法将0.05049精确到千分位是______，将4.34×104精确到千位是______．
答案
将0.05049精确到千分位是0.050，
∵4.34×104=43400≈4.3×104．
∴将4.34×104精确到千位是4.3×104．
故答案为0.050，4.3×104．
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用四舍五入法将0.05049精确到千分位是______，将4.34×104精确到千位是______．
将0.05049精确到千分位是0.050，
∵4.34×104=43400≈4.3×104．
∴将4.34×104精确到千位是4.3×104．
故答案为0.050，4.3×104．