
3.3×0.36-6点6×0.13等于多少?
1个回答
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可以用简便法
3.3×0.36-6.6×0.13
=3.3×0.36-3.3×2×0.13
=3.3×(0.36-2×0.13)
=3.3×(0.36-0.26)
=3.3×0.1
=0.33
3.3×0.36-6.6×0.13
=3.3×0.36-3.3×2×0.13
=3.3×(0.36-2×0.13)
=3.3×(0.36-0.26)
=3.3×0.1
=0.33
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