4.2×7.6+2.1×4.8怎么简便运算?
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计算如下:
4.2×7.6+2.1×4.8
=4.2×7.6+4.2×2.4
=4.2×(7.6+2.4)
=4.2×10
=42
4.2×7.6+2.1×4.8
=4.2×7.6+4.2×2.4
=4.2×(7.6+2.4)
=4.2×10
=42
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4.2x7.6+2.1x4.8
=4.2x7.6+4.2x2.4
=4.2x(7.6+2.4)
=4.2x10
=42。
=4.2x7.6+4.2x2.4
=4.2x(7.6+2.4)
=4.2x10
=42。
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