3.7x6.3+4.7×6.4怎么简便运算?
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3.7x6.3+4.7×6.4
=3.7x6.3+4.7×(6.3+0.1)
=3.7x6.3+4.7×6.3+0.47
=(3.7+4.7)×6.3+0.47
=8.4×6.3+0.47
=8.4×(6+0.3)+0.47
=50.4+2.52+0.47
=53.39
=3.7x6.3+4.7×(6.3+0.1)
=3.7x6.3+4.7×6.3+0.47
=(3.7+4.7)×6.3+0.47
=8.4×6.3+0.47
=8.4×(6+0.3)+0.47
=50.4+2.52+0.47
=53.39
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展开全部
3.7×6.3+4.7×6.4
=3.7×6.3+3.7×6.4+1×6.4
=3.7×(6.3+6.4)+6.4
=4×12.7-0.3×12.7+6.4
=50.8+6.4-3.81
=57.2-4+0.19
=53.39
=3.7×6.3+3.7×6.4+1×6.4
=3.7×(6.3+6.4)+6.4
=4×12.7-0.3×12.7+6.4
=50.8+6.4-3.81
=57.2-4+0.19
=53.39
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